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Physics 101 Mechanics
January 2025
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Physics 101 Mechanics
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January 12, 2025
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January 12 of 2025
Problem 10: (10% of Assignment Value) The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an ocean current that has a velocity of 2.2 m/s in a direction 32° east of north relative to the Earth. It encounters a wind that has a velocity of 4.9 m/s in a…
Question 11 (1 point) X-ray of wavelength 200nm is scattered by an electron that is initially at rest. Which one of the following statements concerning the wavelength of the scattered photon is true? The wavelength is zero nm. The wavelength is 200 nm. The wavelength is greater than 200 nm. The…
The blade of the hacksaw is subjected to a pretension force of F = 155N. Determine: The resultant internal normal force, shear, and moment acting on section a-a that passes through point D. 225 mm 30° 150 mm
The magnitude of the electric field at a point P for a certain electromagnetic wave is 570 N/C. What is the magnitude of the magnetic field for that wave at P? ($c = 3.0 \times 10^8$ m/s) 2.91 μT 1.90 μT 2.41 μT 1.41 μT 1.10 μT
Question One (20 marks) a) A solid shaft 500 mm diameter is used to transmit power from a motor to a juice extracting machine. The shaft is subjected to a bending moment 70 kNm combined with a torque of 10 kNm. Determine; i) The maximum bending stress generated if no torque is applied (3…
Soru 6) Şekilde verilen sistem durağan halden serbest bırakıldığında; A bloğunun, 5 kg kütleli B bloğunu 2 s içinde sürtünmesiz eğimli yüzey boyunca 0.75 m yukarıya doğru hareket ettirebilmesi için kütlesi ne olmalıdır? Not: Makaralar sürtünmesiz ve $g = 9.81 m/s^2$ 'dir.
2. The center of the 90-Kg wheel with centroidal radius of gyration of 4 in. has a velocity of 0.6 m/sec down the incline in the position shown. Calculate the normal reaction N under the wheel as it rolls past position A. Assume that no slipping occurs
A circular steel pipe assembly is to be constructed in three lengths. From the figure presented the pipe lengths are shown as AB, BC and CD respectively. Ends A and D are rigidly fixed against rotation. The length BC will be bolted into place via the end plates of each pipe section. During…
3. The capacitor is charged using a 5 V battery. A circuit in the racquet produces a small alternating p.d. This circuit is connected to a coil wound around an iron core. A second coil around the core is connected to the capacitor charging circuit, as shown in the diagram. Explain how this…
3. Consider the loop of wire in a magnetic field, B. What direction does the current go as the magnetic field is turned off. 4. Consider the loop of wire in a magnetic field, B. What direction does the current go as the magnetic field is turned-down (weakened).
Figure 1 of 1 60 B $v_A = 500 \, km/h$ Part B Determine the direction angle of the velocity of plane B with respect to plane A, measured counterclockwise from the positive $x$ axis. Express your answer in degrees to three significant figures.
If the electric field and magnetic field of an electromagnetic wave are given by $E = E_0 \sin(kx - \omega t)$ and $B = B_0 \sin(kx - \omega t)$, and if the value of $E_0$ is 51 $\mu V/m$, what is the value of $B_0$? ($c = 3.0 \times 10^8 m/s$) $1.7 \times 10^3 T$ $1.7 \times 10^{-13} T$ $1.7…
Figure When mass $m_2$ moves a distance 3.96 m up the ramp, how far downward does mass $m_1$ move? Express your answer to three significant figures and include the appropriate units. $d = $ Value Units
This question is about the Lorentz force and requires no justification. Please note that this symbol $\circ$ - means that a vector points outside the sheet of paper (towards you when facing the questionnaire) and this one - $\times$ inside. Consider the following figures (where the magnetic…
Q1) A railgun uses the magnetic force on electric currents to launch projectiles at high speeds. The railgun shown in the figure has a 16 V power supply connected to two conducting rails. A 14-cm long piece of copper wire with a mass of 23 grams, and resistance of 0.75 mΩ slides freely on the…
3. The capacitor is charged using a 5 V battery. A circuit in the racquet produces a small alternating p.d. This circuit is connected to a coil wound around an iron core. A second coil around the core is connected to the capacitor charging circuit, as shown in the diagram. Explain how this…
Calculate the stress, when a tensile load of 31400 kg is applied to a bar of 4 mm in diameter. Q4) Label the phases and reactions for iron carbide phase diagram below. (15 pts)
QUESTION 2 (25 marks) Given a triangular prism (see Figure Q2) with five surfaces: triangular plane at the top $S_1$, triangular plane at the bottom $S_2$, rectangular surface at yz-plane $S_3$, rectangular surface at xz-plane $S_4$, and $x + y = 1$ plane, $S_5$. Given the net charge enclosed…
Consider the disk rigidity problem on page 1-4 of the lecture notes. Simplify the structure by omitting the disk part outside the support. Use literature to find the analytical transverse displacement solution to a circular elastic plate loaded at the center point. Use the expression to deduce…
In photosynthesis in plants, light is absorbed in light-harvesting complexes consisting of protein and pigment molecules. The energy absorbed is then transported to a specialized complex called the reaction center. Scientists believe that quantum mechanical effects may play an important role in…
The variable resistor in the circuit below is adjusted for maximum power transfer to $R_o$. a) Find the value of $R_o$. b) Find the maximum power that can be delivered to $R_o$. c) What percentage of the total power developed in the circuit is delivered to $R_o$ when $R_o$ is set for maximum…
PROBLEM 2 The truss structure shown in the figure is loaded with a downward load (P=10 kN). The elasticity modulus of bars is 70 GPa ($70 \times 10^9$ Pascal). The diameter is 20 mm. • Assemble the element stiffness matrices (12.5 points) • Assemble the global stiffness matrix (12.5 points) •…
Data Linearization: U(x) D The potential energy function for an object in a particular set of surroundings has the form $U(x) = A - Bx^3$ where U is in Joules and x is in meters. Establish the functional relationship between the net force on the object (F) and the position (x). $-\int…
4.1-10 Water enters a boiler tube at 50°C, 10 MPa at a rate of 12 kg/s. Heat is transferred from the hot surroundings which is maintained at 1500°C into the broiler tube (created by combustion of coal). Water exits the boiler as saturated vapor. Determine (a) the heating rate ($\dot{Q}$) in MW…
(b) Distinguish between the definitions of metals, polymers, and ceramics. For each of these definitions list 5 different points. 1 2 3 4 5 Metals Polymers Ceramics (6 marks)
Question 3) Different types of hardness tests have been performed on the surfaces of different materials. The indentation dimensions after the testing was given in Figure 1 where we see the indentation shapes looking from the top. Information about the shape of the indenter, the hardness test…
Assignment Problem one: The two sides of a V-shaped water trough are hinged to each other at the bottom where they meet, as shown in figure, making an angle of 45° with the ground from both sides. Each side is 0.75 m wide, and the two parts are held together by a cable and turnbuckle placed…
A 2.0 kg particle is traveling counterclockwise in a circular path with a radius of 1.0 m with a velocity 5.0 m/s. What is the angular momentum of the particle about the origin? (i is the unit vector in the direction of the +x axis, j is the unit vector in the direction of the +y axis, k is the…
The pilot of a damaged jet was able to control his plane by throttling the two engines. If the plane has a mass of 8500 kg and a radius of gyration of $k_G = 1.41$ m about the mass center G, determine the angular velocity of the plane and the velocity of its mass center G in t = 5 s if the…
The driving belt is twisted so that pulley B rotates in the opposite direction to that of drive wheel A. 200 mm A 125 mm B $\omega_B$ Part A Part B If A has a constant angular acceleration of $\alpha_A = 31 rad/s^2$, determine the normal component of acceleration of a point located at the rim…
(b) Using the stress ($\sigma$) - strain ($\epsilon$) curve of a steel seen in Figure 1 below, determine the following: (i) Yield strength, tensile strength and fracture elongation (ii) Young's modulus (Modulus of elasticity) (c) In normal motion, the load exerted on the hip joint in human body…
Example 1. A uniform A-36 steel bar in the figure has a diameter of 50 mm and it is subjected to the loading shown. Determine the displacement at D, and the displacement of B with respect to C. 80 KN 40 kN 70 kN
5. A diver is 105m underwater to explore a shipwreck. What pressure is she under at this depth given that Specific gravity, acceleration due gravity, and local atmospheric pressure are 1.03, 9.79 m/s² and 100kPa, respectively.
a- Determine the maximum shear stress $\tau_{max}$, the rate of twist for the open beam channel section of Figure shown when a torque of magnitude T = 10 Nm is applied at the shear centre. b- Assume that the section is closed by a wall from point 2 to 3 of thickness 2.5 mm. Calculate the twist…
Soru 2. Şekilde kademeli mil eşit boyda ve farklı kesitlerdeki üç parçadan (AB, BC ve CD) oluşmaktadır. AB parçasının çapı 60 mm, CD parçasının iç çapı 50 mm dış çapı 80 mm'dir. A ucundan 2 kNm'lik eksenel bir tork uygulandığında toplam dönme $\phi_{AD} = 0.0164$ rad olduğuna göre milde…
The frame supports a distributed load and a tension force of P = 155 lb, as shown in the figure below. Determine: 1. The resultant internal loadings acting at the cross section at point F. 2. The resultant internal loadings acting at the cross section at point G.
The distance at which the lens can no longer bring a close object into focus is called the far point. near point. high point. coupee point.
The vander Waals' equation for 1 mole of a gas is $P + \frac{a}{V^2}(V - b) = RT$, where $a$, $b$ are constants. If $U$ is the internal energy of $n$ moles of this gas, then $\left( \frac{\partial U}{\partial V} \right)_T$…
Problem 9.19 A golf ball of mass 5.0x10<sup>-2</sup> kg is hit off the tee at a speed of 45 m/s. The golf club was in contact with the ball for 4.5x10<sup>-3</sup> s. Part A Find the impulse imparted to the golf ball. Express your answer using two significant figures. p = kg.m/s Part B Find…
2. A ship with a design speed of V=30 knot and L=180 m is put into a series of model tests. During the model tests the maximum boundary layer thickness at the model surface is measured as 0.05105 m by a PIV measurement system. During the measurements, it is found that the flow is turbulent. a.)…
Example 3 Air at 27°C and 1 atm flows over a flat plate at a speed of 2 m/s. Calculate the boundary-layer and thermal boundary layer thickness at distances of 20 cm and 40 cm from the leading edge of the plate. The viscosity of air at 27°C is $1.85 \times 10^{-5}$ kg/m.s.
Tre träplankor är sammanlimmade till en balk med U-format enligt figuren (mått i mm). Tröghetsmomentet $I_z = 3,215 \cdot 10^6 mm^4$. Hur stort är balkens elastiska böjmotstånd $W_{el,z}$? Svaret skall anges utan decimaler i enheten $mm^3$.
8. Using the prism, answer the following questions. a. Write $\vec{EC}$ in terms of $\vec{a}$, $\vec{b}$, and $\vec{c}$. Explain. b. Write $\vec{CE}$ in terms of $\vec{a}$, $\vec{b}$, and $\vec{c}$. Explain. c. What type of vectors are $\vec{EC}$ and $\vec{CE}$ in relation to each other? 9. Bob…
A 70-N block and a 35-N block are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of the 35-N block is _____. (Take g = 10 m/sec²) 70 N pulley 35 N
4. Sürtünmesiz yatay bir düzlemde durmakta olan bir cisme yatay doğrultuda uygulanan kuvvetin cismin yerdeğiştirmesine bağlı değişim grafiği şekilde verilmektedir. Cismin 12. metrede kazandığı kinetik enerji (J cinsinden) nedir? A) 26 B) 22 C) 16 D) 8 E) 4
6. Two cylindrical rods, one of steel and the other of brass, are joined at C and restrained by rigid supports at A and E. For the loading shown and knowing that $E_s = 200$ GPa and $E_b = 105$ GPa, determine (a) the reactions at A and E, (b) the deflection of point C. Dimensions in mm 180 120…
Question 2. Calculate the maximum shear stress at point C of the beam with I section profile. Show the result on a volume element at this point. 20 kN/m 3 m 1.5m 1.5 m 40 mm 5 mm 5 mm 50 mm 20 mm
The figure show an element of $\delta s \times \delta z \times t$ from a thin walled beam in an equilibrium conditions by a system of direct and shear stresses or shear flows. 1- Draw the element and show the necessary shear flows, shear and direct stresses. 2 - Find the simplified form of the…
Problem 1) 30 points The soap bubble is released in the air and rises with a velocity of $V = [(0.8x)i + (0.06t^2)j] m/s$ where x is in meters and t is in seconds. Determine the magnitude of the bubble's velocity, and its directions measured counterclockwise from the x axis, when $t=5s$, at…
Assume that the magnifier is held close to the eye. Use the standard near point of 25.0 cm to find the angular magnification. An insect that is 3.80 mm long is placed 10.1 cm from a simple magnifier with a focal length of 13.0 cm. What is the angular magnification?
2) (35 p) Şekildeki gibi robotik bir kol, dönen dikey bir mile H noktasında menteşe mafsal (revolute joint) ile bağlanmıştır. Bu robotik kolun içindeki ikinci bir kol, robotik kolun bittiği yerden uzayabilmektedir (prismatic joint). Milin dönme açısı $\theta(t)$ ve birinci robotik kolun açısı…
5-104 Air flows through a pipe at a rate of 120 L/s. The pipe consists of two sections of diameters 22 cm and 10 cm with a smooth reducing section that connects them. The pressure difference between the two pipe sections is measured by a water manometer. Neglecting frictional effects, determine…
Question 4. The simply supported beam is built up from two boards by nailing them together as shown. The wood has an allowable shear stress of $\tau_{allow} = 1.5$ MPa, and an allowable bending stress of $\sigma_{allow} = 10$ MPa. The nails are spaced at $s = 70$ mm, and each has a shear…
$\omega_{AB} = 3 rad/s$ $\alpha_{AB} = 5 rad/s^2$ At the instant shown, rod AB has an angular velocity $\omega_{AB} = 3 rad/s$ and an angular acceleration $\alpha_{AB} = 5 rad/s^2$. Determine the angular velocity and angular acceleration of rod CD at this instant. The collar at C is…
The angular position of a rotating object as a function of time is given below: $\theta(t) = 3t^3 + 5t^2 - 4t + 5$ Here $\theta$ is in units of radians and $t$ is in units of seconds. Determine the average angular velocity of the object between $t = 1 s$ and $t = 2 s$. Express your answer using…
Problem 9: The large satellite-tracking antenna has a moment of inertia $I$ about its z-axis of symmetry and a moment of inertia $I_0$ about each of the x- and y-axes. Determine the angular acceleration $\alpha$ of the antenna about the vertical Z-axis caused by a torque $M$ applied about Z by…
Problem two: The gate shown in figure is rectangular and has dimensions 6 m by 4 m. What is the reaction force at stop? 3 m A Hinge Atmospheric pressure Stop 30° 6 m Water
Question 4) In the Charpy impact test, the 35 kg hammer has an arm length of 1.2 m. Before the test, the hammer is at a stationary point with $\alpha = 40^\circ$ as shown in the figure. After hitting the test sample while performing a pendulum movement, the arm reaches its highest location with…
SORU 2 (50 Puan) Ezilme etkili bir bulonlu birleşim 2 adet UPN180 profil, kalınlığı 12 mm olan bir levha ve bulonlar yardımıyla aşağıdaki şekilde teşkil edilmiştir. Buna göre, gereken tüm tahkikleri yaparak birleşimin güvenle taşıyabileceği en büyük P kuvvetinin GKT yaklaşımına göre kaç kN…
4) Şekil deki kütle-yay sisteminde yay blok tarafından $\Delta$=0.4 m sıkıştırılmış durumdadır. Yay bloğa bağlı değildir. Bu durumda ağırlığı $W$= 98.1 N olan blok serbest bırakılırsa, kinetik sürtünme katsayısı $\mu_k$= 0.4 olan yüzeyde $s$= 3m gittikten sonra hızını bulunuz. Elastik yay…
Problem 9.84 Part A After a completely inelastic collision between two objects of equal mass, each having initial speed, $v$, the two move off together with speed $v/4$. What was the angle between their initial directions? $\theta = $ degrees
A block of mass $m$ slides on a rough surface and moves toward a spring with a spring constant $k = 3331 \, N/m$, as shown in the figure below. When the block is $d = 18.5 \, m$ away from the spring, it has a velocity of $v = 18.2 \, m/s$. When the block momentarily stops, it has compressed the…
Question 1) The phase diagram of Aluminum - Stronium (Al-Sr) is given below in terms molar ratio. Inside the phase diagram, Al$_2$Sr, Al$_4$Sr, and Al$_7$Sr$_8$ are the 3 compounds. a) According to the fact that the horizontal adjacent regions of the double phase region should be single phase…
Question 2: A coaxial cable is composed of two long, hollow, right cylindrical tubes or radii $r$ and $R$ respectively. Both tubes carry a uniform current $I$ in opposite directions with respect to each other. Find the magnetic field for: a) The hollow region between the tubes. b) The region…
The cable BC will fail when the tension becomes 65 kN. Neglect the weight and height of the beam AB. Determine: The max force F that can be applied, and the corresponding magnitude of the reaction at A. 26 kN 2 m 4 m
Part A What is the acceleration of the loop when $v = 3.00 \, cm/s$? Express your answer with the appropriate units. Part B What is the loop's terminal speed? Express your answer with the appropriate units. Part C What is the loop's acceleration when the loop is moving at the terminal…
Example 3: A beam is loaded as shown. Determine the elastic curve, deflection at x = 1.5 m and the maximum deflection. Take E = 200 GPa and I = 95 (10$^{-6}$) m$^4$. Trick 3: Loading must follow standard form 30 kN w=40 kN/m 50 kN
Three objects are located as listed below, where positions are in meters. The masses are $m_1 = 2.36$ kg, $m_2 = 3.63$ kg, and $m_3 = 4.42$ kg. $\vec{r_1} = 15.7\hat{i} + 21.7\hat{j} + 23.9\hat{k}$ $\vec{r_2} = 34.7\hat{i} - 17.6\hat{j} + 28.9\hat{k}$ $\vec{r_3} = 24.8\hat{i} + 29.3\hat{j} +…
Question 22 (1 point) An electron of a hydrogen atom is on its $4^{th}$ energy orbit. How many possible photons it could emit? 3 4 5 6
The density of nickel is $8.8 \times 10^3 \, Kg/m^3$ and its atomic weight = 58.7. If bohr magneton = $9.27 \times 10^{-24} \, J/T$, the intensity for magnetization of nickel is ____ $\times 10^5 \, A/m$ (round off to one decimal place)
$q_1 = 40 \, N/m$ $q_2 = 20 \, N/m$ 8 m
3. Optics and radiance. [6 points]. The James Webb Space Telescope (JWST) is NASA's successor to the Hubble Space Telescope, and this fantastic telescope just came into operation. JWST features a segmented 6.5-meter diameter primary mirror and is located near the Earth-Sun 2nd Lagrange point,…
Gear E turns in the direction shown by the arrow and drives the other gears. How many of the 4 gears are turning clockwise?
Q.5. Heat balance test was conducted on a 4-stroke petrol engine and the following result were obtained. Draw a heat balance sheet. Fuel consumption = 0.1 kg/min, Calorific value = 42 Mj/kg Air consumption = 1.5kg/min, Specific heat of exhaust gas = 1.0 kJ/kg.K, Temperature of exhaust gas = 420…
Jack underwent radiation therapy using a beam of neutrons to treat a skin cancer on his hand. He received a dose equivalent of 12 mSv that was absorbed in 20 g of tissue. The relative biological effectiveness (RBE) of these neutrons is 11. What absorbed dose of radiation did Jack…
The beam has a rectangular cross section and is subjected to the loading shown in (Figure 1). Determine the state of stress at point B. Suppose that $F_1 = 800 N$. $F_2 = 1050 N$. Determine the normal stress $\sigma_x$. Express your answer to three significant figures and include the…
1. Consider a modified form of Couette flow in which there are two immiscible fluids sandwiched between two infinitely long and wide, parallel flat plates. The flow is steady, incompressible, parallel, and laminar. The top plate moves at velocity $V$ to the right, and the bottom plate is…
5) Şekildeki gösterildiği üzere basitçe desteklenen 8 metrelik bir kiriş, trapez şekilli bir yayılı yüke maruz kalmaktadır. Bu kiriş için maksimum eğilme momentinin yerini ve değerini hesaplayınız. $q_1 = 40 N/m$ $q_2 = 20 N/m$ 8 m
What is the magnitude of the electric field at the point ($7.10\hat{i} - 9.20\hat{j} + 8.50\hat{k}$) m if the electric potential is given by $V = 6.40xyz^2$, where $V$ is in volts and $x$, $y$, and $z$ are in meters?
A conducting rod with length 0.248 m, mass 0.150 kg, and resistance 83.3 $\Omega$ moves without friction on metal rails as shown in the following figure (Figure 1). A uniform magnetic field with magnitude 1.50 T is directed into the plane of the figure. The rod is initially at rest, and then a…
Part A If $a = 300$ mm and $b = 58$ mm, locate the centroid $\bar{y}$ of the beam's cross-sectional area. (Figure 1) Express your answer with the appropriate units. $\bar{y} = $ Value Units Figure 150 mm 150 mm b a 25 mm 25 mm
In the figure, a stone is projected at a cliff of height h with an initial speed of 44.0 m/s directed at an angle $\theta_0 = 61.0^\circ$ above the horizontal. The stone strikes at A, 5.93 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A,…
Two point charges are fixed on the y axis: a negative point charge $q_1 = -24 \, \mu C$ at $y_1 = +0.16 \, m$ and a positive point charge $q_2$ at $y_2 = +0.36 \, m$. A third point charge $q = +8.8 \, \mu C$ is fixed at the origin. The net electrostatic force exerted on the charge q by the…
Consider the system shown below where four point masses are connected to each other by massless rods. Two of the masses are $m = 9 kg$ and the other two have the masses of $M = 2 kg$. If $a = 1.4 m$, $b = 0.9 m$ and the system rotates about $y$-axis, determine the moment of inertia of the…
33. What Kind of NDT test for an overload bearing? 1. Sensetory inspection 2. Grauwler 3. Dye Penetration 4. Thermal Inspection
2. The T-$\theta$ diagram of an internal combustion engine is shown in the Figure. The enclosed areas are $A_1$=400 J, $A_2$=800 J, $A_3$=550 J,$A_4$=150 J. Find the moment of inertia of the flywheel in order to keep the limit 410 to 416 rev/min.
Which of the following corrosion form is depicted in the given figure? Which of the following is/are the reasons for the cause of crevice corrosion? a. The stagnant solution in the holes and gasket surfaces b. The stagnant solution in the lap joints and surface deposits c. Dissimilar metal…
9. A car with front-wheel drive accelerates in the direction shown. Which diagram best shows the direction of the total force exerted by the road on the front wheels? A B C D
6. A stone thrown upward from the ground with a velocity of 15 m/s. One second later another stone is thrown vertically upwards with a velocity of 30 m/sa) When will the stone be at the same level?b) How far above the ground will the stones be at the same level?c) Determine the time the second…
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one): Answer choices Select correct…
I like how you mentioned that: "In this instance, the cup and the boiling water will eventually attain thermal equilibrium with one another since they are both in thermal equilibrium with their surroundings (presuming the room is at a constant temperature). " How is the room temperature going…
Write down a point defect reaction for ZnO in which you produce twice as many singly charged defects as doubly charged ones.
A tuning fork vibrates 650 times in 6 seconds. What is the frequency?
A 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 70 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the circle, it has a speed of…
A curve in a road is banked at 24 degrees. There is a car on the curve. the mass of the car is 1.6 Mg and has a friction constant of .18. A) What is the component of its weight parallel to the incline? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N. B) If the radius of…
The radius of the earth's orbit is 80*10^9, which is the mass of the sun. The average period of the earth's orbit is 365. G=6.67*10^-11
The power output of an automobile engine is directly proportional to the mass of air that can be forced into the volume of the engine's cylinders to react chemically with gasoline. Many cars have a turbocharger which compresses the air before it enters the engine, giving a greater mass of air…
In air, the specific ionization of a beta-minus radiation field is 240 IP/cm. What is the linear energy transfer?
Determine for each of the following functions whether or not it can be the Z12 of a lossless twoport. If not, state your reasons. (a) (82 + 9)(82 + 50) 8(82 + 20)(82 + 25)
Wouldn’t there be momentum reaction forces at the supports A and B because the beam is clamped-clamped? In the solution they are neglegted
A proton travels with a speed of 5.10 ✕ 106 m/s at an angle of 61° with the direction of a magnetic field of magnitude 0.250 T in the positive x-direction. (a) What is the magnitude of the magnetic force on the proton? N (b) What is the proton's acceleration? (Give the magnitude.)
4. (10 points) The maximum weight to be applied to the bit during the 450 inclined interval of the hole is 50,000 Ibm. The drillstring consists of a 5-in., 19.5 Ibm/ft drillpipe and 8x3.25 in. drill collars, and the maximum mud density anticipated is 13 lbm/gal. Compute the minimum length of…
A 19-gg 11-cmcm-long wire is suspended horizontally between the poles of a horseshoe magnet. When the 0.48-AA current in the wire is turned on, the wire jumps up and out of the magnet. Determine the minimum magnetic field required for the wire to jump up and out of the magnet.
Multiple Choice Question A fluorescent microscope uses Blank______ to view a specimen. Multiple choice question. an electron beam ultraviolet light visible light an atomic probe
Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total charge of Q = -0.67 μC.
A beam of electrons is not deflected as it moves through a region of space in which a magnetic field exists.
If at a particular instant and at a certain point in space the electric field is in the +x-direction and has a magnitude of 4.10 V/mV/m, what is the magnitude of the magnetic field of the wave at this same point in space and instant in time? Express your answer in teslas.
Suppose two equal charges of 1.1 C each are separated by a distance of 1.5 km in air
Jessica pushes a box 10 m across the floor. The box has a mass of 20 kg and she uses 30 N of force on the box. How much work did she do on the box? 600 Nxm 200 Nxm 300 Nxm 0 Nxm
the two spheres of equal mass m are able to slide along the horizontal rotating rod. if they are intially latched in position a distance r from the rotating axis with the assmebly rotating freely with an angular velocity w, determine the new angular velocity w after the spheres are released and…
manic episodes are considered distinct when they are seperated by what length of time
In which of the following medium can only electromagnetic waves can travel through? Space Air Water Steel
The equation of potential function is given as \phi =U_(\infty )rcos\theta +(Kcos\theta )/(r) a) Determine the stream function of the flow. b) Determine the circulation in a circular region located at the origin where r=1 c) Determine complex function of the flow.
An electron and a 0.0390-kg bullet each have a velocity of magnitude 455 m/s, accurate to within 0.0100%. Within what lower limit could we determine the position of each object along the direction of the velocity? Step 1 The uncertainty principle states that the product of the uncertainties in…
How can you connect four of them to produce an equivalent resistance of 0.25 k\Omega
Three identical resistors have an equivalent resistance of 50 ΩΩ when connected in parallel. Part A What is their equivalent resistance when connected in series?
A ball strikes the floor vertically and rebounds with a coefficient of restitution of 0.80 . If the v mass of the ball is 0.11 slug and its velocity is 5 ft /sec just before it hits , compute the momentum of the ball as it leaves the floor .
A 54kg person rides an elevator and accelerates upwards at 2.40m/s^2. if the person is standing on a bathroom scale, what does the scale measure?
An alpha particle ( 2 4 He) of initial energy 5.5MeV moves towards the centre of a nucleus of gold-197 ( 79 197Au). What is the distance of closest approach of the alpha particle? A. 1.0 × 10-13m B. 4.1 × 10-14m C. 2.1 × 10-14m D. 6.6 × 10-33m
Explain the construction and working principle of various solar measurement instruments.
It is hung on a wheel with a radius of 0.40 m and mounted on a frictionless bed with the help of a block of rope (see the fix). When the wheel was released from the stationary state, the block was lowered to 1.5 m at 3.00 s without slipping rope. Since the voltage in the rope was 25 N during…
When a monochromatic light of wavelength 435 nm incident on a double slit of slit separation 4 µm, there are 5 interference fringes in its central maximum. How many interference fringes will be in the central maximum of a light of wavelength 632.5 nm for the same double slit? fringes †
is the induced emf? 29.13 •• The armature of a small generator consists of a flat, square coil with 120 turns and sides with a length of 1.60 cm. The coil rotates in a magnetic field of 0.0750 T. What is the angular speed of the coil if the maximum emf produced is 24.0 mV?
Assume that the rate at which radioactive nuclei decay is proportional to the not be of urgent rumber o reforeve nuce have indergrain ampegration in a period of 100 years(a) What percentage of the original radioactive nuclei will remain after 1000 years?(b) In how many years will only…
A 4.0 kg block on a frictionless surface experiences two horizontal forces: F⃗1 = 14.0ˆi N and F⃗2 =−8.0ˆiN. (a) Find the net horizontal force. (b) Determine the block’s horizontal acceleration. (c) Starting from rest, find its velocity after 3.0 s. (d) Determine its displacement after 3.0…
A uniform magnetic field of magnitude 0.58 T is directed perpendicular to the plane of a rectangular loop having dimensions 7.7 cm by 15 cm. Find the magnetic flux through the loop. T · m2
what is the power if force is 140 N and velocity is 10 m/s?
An 70 newton force pushes a 2 kg block up a 45 degree inclined plane to a height of 0.1 meters. At the top the block coasts and slows down on deep pile carpet. The block then slides down another inclined plane and over more carpet before compressing a spring with constant 24 N/ m.
A thin uniform film of oil that can be varied in thickness covers a sheet of glass of refractive index 1.52. The refractive index of the oil is 1.64. Light of wavelength 555 nm is shone from air at normal incidence on the film. Starting with no oil on the glass, you gradually increase the…
You heat a quantity of gas having a temperature of 120°F and a pressure of 300 psi, until its pressure is 800 psi. If the volume of gas remains constant, the final temperature is
In 2005, the spacecraft Huygens landed on one of the moons of Saturn. The data gathered by Huygens were relayed by radio to the Earth by a second satellite in orbit about the moon. Estimate the distance between this moon and the Earth. km Calculate the time required for this radio signal to…
A shopper in a supermarket pushes a cart with a force of 39 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed. (a) Find the work done by the shopper as she moves down a 51.0-m length aisle.
In a typical delivery, the baby's head is delivered first. Group of answer choices True False
It takes a time t=0.68 s for a record to revolve on a record player. A particular point on the record moves past the needle at a speed of vn=0.97 m/s. What is the tangential speed v2 of a point on the record that is at r2=0.05m is m/s
At its lowest setting a centrifuge rotates with an angular speed of ω1 = 350 rad/s. When it is switched to the next higher setting it takes t = 5.5 s to uniformly accelerate to its final angular speed ω2 = 750 rad/s.
(4 points) A large insulated bottle containing 614 mL of water initially at 20∘∘C is cooled by adding ice at 0∘∘C. Assume the specific heat of liquid water is constant at 4.18 kJkg KkJkg K and the density of liquid water is constant at 1000 kgm3kgm3 a) If 70 grams of ice is added to the bottle,…
You're investigating a subway accident in which a train derailed while rounding an unbanked curve of radius 150 mm, and you're asked to determine whether the train exceeded the 50-km/hkm/h speed limit for this curve. You interview a passenger who had been standing and holding a strap; she…
A liquid generally wants to decrease the area of its surface as much as possible
We've learned about three kinds of fields in physics. In Physics I the concept of a field, as introduced by Michael Faraday, was first used to explain gravitational forces. In the past couple of weeks, we've learned about electric and magnetic fields and forces. Compare and contrast electric…
Write the formulas to be used in the thesis topic "Dynamic Analysis of Bevel Gears by ANSYS".
Calculate the energy of a He + ion in its first excited state. Ans: : Substitute; n = 2 ; Z = 2 and calculate answer.
A stick can rotate freely about its lower end, where the pivot is located. A force F acts halfway up the stick. In the two drawings, A and B, the force has the same magnitude F and is acting at the same spot. A F~ B F~ How does the magnitude of the torque τ about the pivot differ in these two…
Consider a 10-meter-high building. A soccer ball is projected horizontally from the rooftop with an initial velocity of 5 m/s. At the exact moment, a projectile is launched from ground level at an angle of 30 degrees above the horizontal with an initial velocity of 20 m/s. Analyze whether a…
During a very quick stop, a car decelerates at 7.4m/s. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). How many revolutions do the tires make before coming to rest, given their initial angular…
the speed of light is approximately $299 million meters per second what is the speed of light in meters per second using scientific notation
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one): Answer choices Select correct…
Calculate the specific ionization of Pa-234m average beta in air. Express answer in ip/cm.
Consider the inelastic collision. Two lumps of matter are moving directly toward each other, Each has a mass of kg and is moving at a speed of 0.930cThe two lumps collide and stick togetherAnswer the questionskeeping in mind that relativistic effects cannot be neglected in this case. What is…
What is the tangential speed of a lug nut on a wheel of a car if the lug nut is located 0.114 m from the axis of rotation; and the wheel is rotating at 6.53 rev/sec? 4.68 m/s 1.49 m/s 9.36 m/s 2.98 m/s 0.745 m/s
Calculate the kinetic energy (SI and AES units) of 1 mole of oxygen traveling at a linear speed of 101 m/s(331.4ft/s)
What is the most practical way to measure an athlete's pulse during exercise? Select one: a. Count the number of total beats in sixty seconds from the carotid pulse b. Count the number of beats in six seconds and then add a zero c. Count the number of beats in sixty seconds from the brachial…
? are represented by two numbers. a. Scalars b. Vectors c. All the above d. Neither of the above
Atom AA has fourfold as long a half-life as atom BB. If both of them start out with an amount N0N0, then in the time that AA has been reduced to N0/2N0/2, BB has been reduced to
This time, V = 64.8 V; R1 = 83 Ohms; R2 = 195 Ohms; R3 = 85 Ohms; R4 = 128 Ohms; R5 = 101 Ohms; and R6 = 179 Ohms. How much current flows through resistor R3?
A loaded cargo train car with mass 25,000 kg is coupled to an empty car with mass 3,300 kg. A locomotive applies a force of 64 kN (kilo-Newtons) to the empty car. Find the tension in kN in the coupler between the two cars.
Charges in a conductor in electrostatic equilibrium are: moving with constant speed.at rest.moving with constant acceleration.
A mass of 0.25kg hangs from a spring of spring constant 4.0Nm-1 . What is the natural frequency of oscillation for this system? A. 0.50Hz B. 0.64Hz C. 1.6Hz D. 2.0Hz
A 62 gg firecracker is at rest at the origin when it explodes into three pieces. The first, with mass 16 gg , moves along the xx axis at 32 m/sm/s in the positive direction. The second, with mass 16 gg , moves along the yy axis at 33 m/sm/s in the positive direction. Part A Find the…
a) At a point in a component subjected to combined loading, there are two planes perpendicular to each other where the stresses are dx = -200 MN/m^2 and dy = 100 MN/m^2. On each of these planes there is a shear stress 45 MN/m^2. Draw to scale Mohr's circle for stress and using the Mohr's circle…
Question 6 (4 points) A monochromatic beam of light has a wavelength of 486 nm. It is diffracted through a set of double slits, and produces a maxima of order 4 at an angle of 3.00 degrees. What is the separation of the slits in m?
What is the frequency of a light whose wavelenght is 650nm
1. (a) What value of n is associated with the 94.96 nm spectral line in the Lyman series of Hydrogen ? (b) Could this wavelength be associated with the Paschen or Balmer series ? Ans: (a) n=5 ; (b) this wave length cannot be associated with the Paschen or Balmer series
An aircraft travelling from Melbourne to Maryborough (a distance of 170km) is able to travel at an average speed of 250km/h on the way there and 170km/h on the way back (due to wind and other factors). Which of the following statements is true (you can select more than one): Answer…
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one):
Linearly polarized light propagating along the y direction is incident on a polarizer whose axis is parallel to the z direction. If the intensity of the transmitted light is equal to 14% of the incident intensity, what is the angle of polarization of the incident light? °
If initial velocity is zero and final velocity is 30 m/s and time is 10 s then find out the acceleration?
An L-C circuit has an inductance of 0.370 H and a capacitance of 0.200 nF . During the current oscillations, the maximum current in the inductor is 2.00 A
An 18 mm wide diffraction grating has rulings of 810 lines per mm. Light is incident normally on the grating. Monochromatic light of 662 nm wavelength is used. The largest angle from the normal at which an intensity maximum is formed is closest to:
A car speeds along the curved exit ramp of a freeway. The radius of the curve is 80.0 m. A 70.0-kg passenger holds the armrest of the car door with a 220-N force in order to keep from sliding across the front seat of the car. (Assume the exit ramp is not banked and ignore friction with the car…
The fastest speed ever recorded in space travel is 24,791 mph. The closest star to Earth, other than the sun, is named Proxima Centauri and is 25,000,000,000,000 miles away. If a spaceship traveled at the record speed, how many years would it take to reach Proxima Centauri?
An object travels at a velocity of -54 m/s for 11 seconds. What is its speed? -4.9 m/s2 54 m/s 4.9 m/s 54 m/s2
a man pushed his 12 kg lawnmower across his lawn at constant speed applying force G = 100 N at an angle 0 = 40 degrees relative to horizontal. what is the coefficient of friction between the lawnmower and the lawn? ignore the friction internal to the lawnmower
Consider a sound wave moving through the air modeled with the equation s(x, t) = 7.00 nm cos(54.00 m−1x − 19.00 ✕ 103 s−1t). What is the shortest time (in s) required for an air molecule to move between 3.50 nm and −3.50 nm? s
A Blank difference is created by Blank positive charge from Blank charge.
A shopper in a supermarket pushes a cart with a force of 39 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed. (c) The shopper goes down the next aisle, pushing horizontally and maintaining…
Answers may be entered into WebAssign as numeric values, including the use of scientific notation. When entering numeric values, a period should be used to represent a decimal, and commas should not be used at all. When using scientific notation, WebAssign uses the common lower-case "e" format,…
The displacement x of a particle at time t is given by x = 5sin^2(t), where x is in meters and t is in seconds. A simple pendulum has the same period as the particle when the length of the pendulum is (A) 10.0m (B) 5.0m (C) 2.5m (D) 2.0m.
A flow is considered to be turbulent if its Reynolds number is larger than 4000 and laminar if its Reynolds number is smaller than 2300. The flows with Reynolds numbers between 2300 and 4000 are known as transition. At 1000 RPM, 1500 RPM and 2000 RPM flows have Reynolds numbers of 37389, 54384…
What is the strength of the electric field 2.0 cmcm from a small glass bead that has been charged to ++ 7.0 nCnC ? Express your answer in newtons per coulomb.
Transform vector into spherical coordinate and then evaluate it at the indicate point (-1,0,2) if you know vector B=((x^2) +( y^2) +(z^2) )j - (( x^2) + (y^2) ) k. Thank you.
A cow is grazing in a field. By observing the path that she cuts through the grass, you find that her velocity is: 𝑣→=(0.3𝑚𝑠−0.07𝑚𝑠3𝑡2)𝑖̂ +(0.4𝑚𝑠2𝑡)𝑗̂ v→=(0.3ms−0.07ms3t2)i^+(0.4ms2t)j^ What are the magnitude and direction of her acceleration at t = 10 s? Assume that the positive x-direction is…
A 2.5 kg object initially moves at 1.5 m/s on a frictionless track. A constant horizontal force F = 10.0 N acts on it over 4.0 m. (a) Find the initial kinetic energy. (b) Determine the work done by the force over 4.0 m. (c) Use the work-energy theorem to find the final kinetic energy. (d)…
A pendulum that has a period of 3.27000 s and that is located where the acceleration due to gravity is 9.77 m/s2 is moved to a location where it the acceleration due to gravity is 9.80 m/s2. What is its new period? (Enter your answer in seconds and to at least 5 decimal places.)
Refraction was an area of difficulty for the particle theory of light. What phenomena of refraction were not known to Newton and his fellow supporters of the particle theory?
Your post is very interesting. When you mentioned the third system being applied to the problem for Thermal equilibrium, the constant room temperature, I was thinking the cup would have been at room temperature. Which I stand corrected I overlooked the mention of the water in the cup. So your…
.A 2.5 kg cold water at 18⁰C is filled in a 1200-W teapot. The teapot has a mass of 0.8 kg. The water is then heated until the water is boiled. Determine the time needed for the heater to heat the water. Assume that the thermal properties of water and teapot is constant and heat loss is…
1- A hot upset forging operation is performed in an open die. The initial size of the workpart is: Do = 25 mm, and ho = 50 mm. The part is upset to a diameter = 50 mm. The work metal at this elevated temperature yields at 85 MPa (n = 0). Coefficient of friction at the die-work interface =…
Assume that the lower leg and the foot have a combined mass of 3.6kg, and that their combined center of gravity is at the center of the lower leg. How much force must the tendon exert to keep the leg in this position?
(a) An electron has a kinetic energy of 4.98 eV. Find its wavelength. nm (b) A photon has energy 4.98 eV. Find its wavelength. nm
A steel bar of length 4 meters and cross-sectional area 0.01 m² is subjected to a tensile force of 80,000 N. Calculate the elongation of the bar if the Young's modulus for steel is 2 x 1011 N/m².
compare staggered and colocated grid. state the advantages of one over the other
A thin metallic foil is sandwiched between two electrically insulating slabs of constant thermal conductivity k
3. (10 points) A solenoid of length 12 cm carries a current of 3.1 mA along 400 turns of wire. Find the magnitude of the magnetic field inside the solenoid.
The steel cables supporting the "Lion's Gate" suspension bridge are approximately 1200 meters long. If the temperature ranges from -9° to +26 ° C between winter and summer extremes, calculate the variation in the length of the cables. Linear coefficient (steel): 12 x 10-6/°C. I need each and…
Light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0. In this liquid, what is the wavelength of the light? (c = 3.0 × 108 m/s) 200 nm 1200 nm 300 nm 600 nm
The following test data were obtained with a freon 12 vapor compression refrigeration system operating a test steady state 700 KPA
Calculate earths mass given the acceleration due to gravity at the north pole is 9.789m/s^2 and the radius of the earth at the pole is 6356.8kg
A person lifts an 80 lb bag of cement of 3.5 ft in the air how much work is done
Assume that the rate at which radioactive nuclei decay is proportional to the not be of urgent rumber o reforeve nuce have indergrain ampegration in a period of 100 years(a) What percentage of the original radioactive nuclei will remain after 1000 years?(b) In how many years will only…
Suppose you are standing on the time meridian of 75 W, what would be the next time meridian to your west? Group of answer choices a. 76 W b. 90 W c. 100 W d. 180 W
Problem 10: (10% of Assignment Value) The velocity of the wind relative to the water is crucial to sailboats. Suppose a sailboat is in an ocean current that has a velocity of 2.2 m/s in a direction 32° east of north relative to the Earth. It encounters a wind that has a velocity of 4.9 m/s in a…
Question 11 (1 point) X-ray of wavelength 200nm is scattered by an electron that is initially at rest. Which one of the following statements concerning the wavelength of the scattered photon is true? The wavelength is zero nm. The wavelength is 200 nm. The wavelength is greater than 200 nm. The…
The blade of the hacksaw is subjected to a pretension force of F = 155N. Determine: The resultant internal normal force, shear, and moment acting on section a-a that passes through point D. 225 mm 30° 150 mm
The magnitude of the electric field at a point P for a certain electromagnetic wave is 570 N/C. What is the magnitude of the magnetic field for that wave at P? ($c = 3.0 \times 10^8$ m/s) 2.91 μT 1.90 μT 2.41 μT 1.41 μT 1.10 μT
Question One (20 marks) a) A solid shaft 500 mm diameter is used to transmit power from a motor to a juice extracting machine. The shaft is subjected to a bending moment 70 kNm combined with a torque of 10 kNm. Determine; i) The maximum bending stress generated if no torque is applied (3…
Soru 6) Şekilde verilen sistem durağan halden serbest bırakıldığında; A bloğunun, 5 kg kütleli B bloğunu 2 s içinde sürtünmesiz eğimli yüzey boyunca 0.75 m yukarıya doğru hareket ettirebilmesi için kütlesi ne olmalıdır? Not: Makaralar sürtünmesiz ve $g = 9.81 m/s^2$ 'dir.
2. The center of the 90-Kg wheel with centroidal radius of gyration of 4 in. has a velocity of 0.6 m/sec down the incline in the position shown. Calculate the normal reaction N under the wheel as it rolls past position A. Assume that no slipping occurs
A circular steel pipe assembly is to be constructed in three lengths. From the figure presented the pipe lengths are shown as AB, BC and CD respectively. Ends A and D are rigidly fixed against rotation. The length BC will be bolted into place via the end plates of each pipe section. During…
3. The capacitor is charged using a 5 V battery. A circuit in the racquet produces a small alternating p.d. This circuit is connected to a coil wound around an iron core. A second coil around the core is connected to the capacitor charging circuit, as shown in the diagram. Explain how this…
3. Consider the loop of wire in a magnetic field, B. What direction does the current go as the magnetic field is turned off. 4. Consider the loop of wire in a magnetic field, B. What direction does the current go as the magnetic field is turned-down (weakened).
Figure 1 of 1 60 B $v_A = 500 \, km/h$ Part B Determine the direction angle of the velocity of plane B with respect to plane A, measured counterclockwise from the positive $x$ axis. Express your answer in degrees to three significant figures.
If the electric field and magnetic field of an electromagnetic wave are given by $E = E_0 \sin(kx - \omega t)$ and $B = B_0 \sin(kx - \omega t)$, and if the value of $E_0$ is 51 $\mu V/m$, what is the value of $B_0$? ($c = 3.0 \times 10^8 m/s$) $1.7 \times 10^3 T$ $1.7 \times 10^{-13} T$ $1.7…
Figure When mass $m_2$ moves a distance 3.96 m up the ramp, how far downward does mass $m_1$ move? Express your answer to three significant figures and include the appropriate units. $d = $ Value Units
This question is about the Lorentz force and requires no justification. Please note that this symbol $\circ$ - means that a vector points outside the sheet of paper (towards you when facing the questionnaire) and this one - $\times$ inside. Consider the following figures (where the magnetic…
Q1) A railgun uses the magnetic force on electric currents to launch projectiles at high speeds. The railgun shown in the figure has a 16 V power supply connected to two conducting rails. A 14-cm long piece of copper wire with a mass of 23 grams, and resistance of 0.75 mΩ slides freely on the…
3. The capacitor is charged using a 5 V battery. A circuit in the racquet produces a small alternating p.d. This circuit is connected to a coil wound around an iron core. A second coil around the core is connected to the capacitor charging circuit, as shown in the diagram. Explain how this…
Calculate the stress, when a tensile load of 31400 kg is applied to a bar of 4 mm in diameter. Q4) Label the phases and reactions for iron carbide phase diagram below. (15 pts)
QUESTION 2 (25 marks) Given a triangular prism (see Figure Q2) with five surfaces: triangular plane at the top $S_1$, triangular plane at the bottom $S_2$, rectangular surface at yz-plane $S_3$, rectangular surface at xz-plane $S_4$, and $x + y = 1$ plane, $S_5$. Given the net charge enclosed…
Consider the disk rigidity problem on page 1-4 of the lecture notes. Simplify the structure by omitting the disk part outside the support. Use literature to find the analytical transverse displacement solution to a circular elastic plate loaded at the center point. Use the expression to deduce…
In photosynthesis in plants, light is absorbed in light-harvesting complexes consisting of protein and pigment molecules. The energy absorbed is then transported to a specialized complex called the reaction center. Scientists believe that quantum mechanical effects may play an important role in…
The variable resistor in the circuit below is adjusted for maximum power transfer to $R_o$. a) Find the value of $R_o$. b) Find the maximum power that can be delivered to $R_o$. c) What percentage of the total power developed in the circuit is delivered to $R_o$ when $R_o$ is set for maximum…
PROBLEM 2 The truss structure shown in the figure is loaded with a downward load (P=10 kN). The elasticity modulus of bars is 70 GPa ($70 \times 10^9$ Pascal). The diameter is 20 mm. • Assemble the element stiffness matrices (12.5 points) • Assemble the global stiffness matrix (12.5 points) •…
Data Linearization: U(x) D The potential energy function for an object in a particular set of surroundings has the form $U(x) = A - Bx^3$ where U is in Joules and x is in meters. Establish the functional relationship between the net force on the object (F) and the position (x). $-\int…
4.1-10 Water enters a boiler tube at 50°C, 10 MPa at a rate of 12 kg/s. Heat is transferred from the hot surroundings which is maintained at 1500°C into the broiler tube (created by combustion of coal). Water exits the boiler as saturated vapor. Determine (a) the heating rate ($\dot{Q}$) in MW…
(b) Distinguish between the definitions of metals, polymers, and ceramics. For each of these definitions list 5 different points. 1 2 3 4 5 Metals Polymers Ceramics (6 marks)
Question 3) Different types of hardness tests have been performed on the surfaces of different materials. The indentation dimensions after the testing was given in Figure 1 where we see the indentation shapes looking from the top. Information about the shape of the indenter, the hardness test…
Assignment Problem one: The two sides of a V-shaped water trough are hinged to each other at the bottom where they meet, as shown in figure, making an angle of 45° with the ground from both sides. Each side is 0.75 m wide, and the two parts are held together by a cable and turnbuckle placed…
A 2.0 kg particle is traveling counterclockwise in a circular path with a radius of 1.0 m with a velocity 5.0 m/s. What is the angular momentum of the particle about the origin? (i is the unit vector in the direction of the +x axis, j is the unit vector in the direction of the +y axis, k is the…
The pilot of a damaged jet was able to control his plane by throttling the two engines. If the plane has a mass of 8500 kg and a radius of gyration of $k_G = 1.41$ m about the mass center G, determine the angular velocity of the plane and the velocity of its mass center G in t = 5 s if the…
The driving belt is twisted so that pulley B rotates in the opposite direction to that of drive wheel A. 200 mm A 125 mm B $\omega_B$ Part A Part B If A has a constant angular acceleration of $\alpha_A = 31 rad/s^2$, determine the normal component of acceleration of a point located at the rim…
(b) Using the stress ($\sigma$) - strain ($\epsilon$) curve of a steel seen in Figure 1 below, determine the following: (i) Yield strength, tensile strength and fracture elongation (ii) Young's modulus (Modulus of elasticity) (c) In normal motion, the load exerted on the hip joint in human body…
Example 1. A uniform A-36 steel bar in the figure has a diameter of 50 mm and it is subjected to the loading shown. Determine the displacement at D, and the displacement of B with respect to C. 80 KN 40 kN 70 kN
5. A diver is 105m underwater to explore a shipwreck. What pressure is she under at this depth given that Specific gravity, acceleration due gravity, and local atmospheric pressure are 1.03, 9.79 m/s² and 100kPa, respectively.
a- Determine the maximum shear stress $\tau_{max}$, the rate of twist for the open beam channel section of Figure shown when a torque of magnitude T = 10 Nm is applied at the shear centre. b- Assume that the section is closed by a wall from point 2 to 3 of thickness 2.5 mm. Calculate the twist…
Soru 2. Şekilde kademeli mil eşit boyda ve farklı kesitlerdeki üç parçadan (AB, BC ve CD) oluşmaktadır. AB parçasının çapı 60 mm, CD parçasının iç çapı 50 mm dış çapı 80 mm'dir. A ucundan 2 kNm'lik eksenel bir tork uygulandığında toplam dönme $\phi_{AD} = 0.0164$ rad olduğuna göre milde…
The frame supports a distributed load and a tension force of P = 155 lb, as shown in the figure below. Determine: 1. The resultant internal loadings acting at the cross section at point F. 2. The resultant internal loadings acting at the cross section at point G.
The distance at which the lens can no longer bring a close object into focus is called the far point. near point. high point. coupee point.
The vander Waals' equation for 1 mole of a gas is $P + \frac{a}{V^2}(V - b) = RT$, where $a$, $b$ are constants. If $U$ is the internal energy of $n$ moles of this gas, then $\left( \frac{\partial U}{\partial V} \right)_T$…
Problem 9.19 A golf ball of mass 5.0x10<sup>-2</sup> kg is hit off the tee at a speed of 45 m/s. The golf club was in contact with the ball for 4.5x10<sup>-3</sup> s. Part A Find the impulse imparted to the golf ball. Express your answer using two significant figures. p = kg.m/s Part B Find…
2. A ship with a design speed of V=30 knot and L=180 m is put into a series of model tests. During the model tests the maximum boundary layer thickness at the model surface is measured as 0.05105 m by a PIV measurement system. During the measurements, it is found that the flow is turbulent. a.)…
Example 3 Air at 27°C and 1 atm flows over a flat plate at a speed of 2 m/s. Calculate the boundary-layer and thermal boundary layer thickness at distances of 20 cm and 40 cm from the leading edge of the plate. The viscosity of air at 27°C is $1.85 \times 10^{-5}$ kg/m.s.
Tre träplankor är sammanlimmade till en balk med U-format enligt figuren (mått i mm). Tröghetsmomentet $I_z = 3,215 \cdot 10^6 mm^4$. Hur stort är balkens elastiska böjmotstånd $W_{el,z}$? Svaret skall anges utan decimaler i enheten $mm^3$.
8. Using the prism, answer the following questions. a. Write $\vec{EC}$ in terms of $\vec{a}$, $\vec{b}$, and $\vec{c}$. Explain. b. Write $\vec{CE}$ in terms of $\vec{a}$, $\vec{b}$, and $\vec{c}$. Explain. c. What type of vectors are $\vec{EC}$ and $\vec{CE}$ in relation to each other? 9. Bob…
A 70-N block and a 35-N block are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of the 35-N block is _____. (Take g = 10 m/sec²) 70 N pulley 35 N
4. Sürtünmesiz yatay bir düzlemde durmakta olan bir cisme yatay doğrultuda uygulanan kuvvetin cismin yerdeğiştirmesine bağlı değişim grafiği şekilde verilmektedir. Cismin 12. metrede kazandığı kinetik enerji (J cinsinden) nedir? A) 26 B) 22 C) 16 D) 8 E) 4
6. Two cylindrical rods, one of steel and the other of brass, are joined at C and restrained by rigid supports at A and E. For the loading shown and knowing that $E_s = 200$ GPa and $E_b = 105$ GPa, determine (a) the reactions at A and E, (b) the deflection of point C. Dimensions in mm 180 120…
Question 2. Calculate the maximum shear stress at point C of the beam with I section profile. Show the result on a volume element at this point. 20 kN/m 3 m 1.5m 1.5 m 40 mm 5 mm 5 mm 50 mm 20 mm
The figure show an element of $\delta s \times \delta z \times t$ from a thin walled beam in an equilibrium conditions by a system of direct and shear stresses or shear flows. 1- Draw the element and show the necessary shear flows, shear and direct stresses. 2 - Find the simplified form of the…
Problem 1) 30 points The soap bubble is released in the air and rises with a velocity of $V = [(0.8x)i + (0.06t^2)j] m/s$ where x is in meters and t is in seconds. Determine the magnitude of the bubble's velocity, and its directions measured counterclockwise from the x axis, when $t=5s$, at…
Assume that the magnifier is held close to the eye. Use the standard near point of 25.0 cm to find the angular magnification. An insect that is 3.80 mm long is placed 10.1 cm from a simple magnifier with a focal length of 13.0 cm. What is the angular magnification?
2) (35 p) Şekildeki gibi robotik bir kol, dönen dikey bir mile H noktasında menteşe mafsal (revolute joint) ile bağlanmıştır. Bu robotik kolun içindeki ikinci bir kol, robotik kolun bittiği yerden uzayabilmektedir (prismatic joint). Milin dönme açısı $\theta(t)$ ve birinci robotik kolun açısı…
5-104 Air flows through a pipe at a rate of 120 L/s. The pipe consists of two sections of diameters 22 cm and 10 cm with a smooth reducing section that connects them. The pressure difference between the two pipe sections is measured by a water manometer. Neglecting frictional effects, determine…
Question 4. The simply supported beam is built up from two boards by nailing them together as shown. The wood has an allowable shear stress of $\tau_{allow} = 1.5$ MPa, and an allowable bending stress of $\sigma_{allow} = 10$ MPa. The nails are spaced at $s = 70$ mm, and each has a shear…
$\omega_{AB} = 3 rad/s$ $\alpha_{AB} = 5 rad/s^2$ At the instant shown, rod AB has an angular velocity $\omega_{AB} = 3 rad/s$ and an angular acceleration $\alpha_{AB} = 5 rad/s^2$. Determine the angular velocity and angular acceleration of rod CD at this instant. The collar at C is…
The angular position of a rotating object as a function of time is given below: $\theta(t) = 3t^3 + 5t^2 - 4t + 5$ Here $\theta$ is in units of radians and $t$ is in units of seconds. Determine the average angular velocity of the object between $t = 1 s$ and $t = 2 s$. Express your answer using…
Problem 9: The large satellite-tracking antenna has a moment of inertia $I$ about its z-axis of symmetry and a moment of inertia $I_0$ about each of the x- and y-axes. Determine the angular acceleration $\alpha$ of the antenna about the vertical Z-axis caused by a torque $M$ applied about Z by…
Problem two: The gate shown in figure is rectangular and has dimensions 6 m by 4 m. What is the reaction force at stop? 3 m A Hinge Atmospheric pressure Stop 30° 6 m Water
Question 4) In the Charpy impact test, the 35 kg hammer has an arm length of 1.2 m. Before the test, the hammer is at a stationary point with $\alpha = 40^\circ$ as shown in the figure. After hitting the test sample while performing a pendulum movement, the arm reaches its highest location with…
SORU 2 (50 Puan) Ezilme etkili bir bulonlu birleşim 2 adet UPN180 profil, kalınlığı 12 mm olan bir levha ve bulonlar yardımıyla aşağıdaki şekilde teşkil edilmiştir. Buna göre, gereken tüm tahkikleri yaparak birleşimin güvenle taşıyabileceği en büyük P kuvvetinin GKT yaklaşımına göre kaç kN…
4) Şekil deki kütle-yay sisteminde yay blok tarafından $\Delta$=0.4 m sıkıştırılmış durumdadır. Yay bloğa bağlı değildir. Bu durumda ağırlığı $W$= 98.1 N olan blok serbest bırakılırsa, kinetik sürtünme katsayısı $\mu_k$= 0.4 olan yüzeyde $s$= 3m gittikten sonra hızını bulunuz. Elastik yay…
Problem 9.84 Part A After a completely inelastic collision between two objects of equal mass, each having initial speed, $v$, the two move off together with speed $v/4$. What was the angle between their initial directions? $\theta = $ degrees
A block of mass $m$ slides on a rough surface and moves toward a spring with a spring constant $k = 3331 \, N/m$, as shown in the figure below. When the block is $d = 18.5 \, m$ away from the spring, it has a velocity of $v = 18.2 \, m/s$. When the block momentarily stops, it has compressed the…
Question 1) The phase diagram of Aluminum - Stronium (Al-Sr) is given below in terms molar ratio. Inside the phase diagram, Al$_2$Sr, Al$_4$Sr, and Al$_7$Sr$_8$ are the 3 compounds. a) According to the fact that the horizontal adjacent regions of the double phase region should be single phase…
Question 2: A coaxial cable is composed of two long, hollow, right cylindrical tubes or radii $r$ and $R$ respectively. Both tubes carry a uniform current $I$ in opposite directions with respect to each other. Find the magnetic field for: a) The hollow region between the tubes. b) The region…
The cable BC will fail when the tension becomes 65 kN. Neglect the weight and height of the beam AB. Determine: The max force F that can be applied, and the corresponding magnitude of the reaction at A. 26 kN 2 m 4 m
Part A What is the acceleration of the loop when $v = 3.00 \, cm/s$? Express your answer with the appropriate units. Part B What is the loop's terminal speed? Express your answer with the appropriate units. Part C What is the loop's acceleration when the loop is moving at the terminal…
Example 3: A beam is loaded as shown. Determine the elastic curve, deflection at x = 1.5 m and the maximum deflection. Take E = 200 GPa and I = 95 (10$^{-6}$) m$^4$. Trick 3: Loading must follow standard form 30 kN w=40 kN/m 50 kN
Three objects are located as listed below, where positions are in meters. The masses are $m_1 = 2.36$ kg, $m_2 = 3.63$ kg, and $m_3 = 4.42$ kg. $\vec{r_1} = 15.7\hat{i} + 21.7\hat{j} + 23.9\hat{k}$ $\vec{r_2} = 34.7\hat{i} - 17.6\hat{j} + 28.9\hat{k}$ $\vec{r_3} = 24.8\hat{i} + 29.3\hat{j} +…
Question 22 (1 point) An electron of a hydrogen atom is on its $4^{th}$ energy orbit. How many possible photons it could emit? 3 4 5 6
The density of nickel is $8.8 \times 10^3 \, Kg/m^3$ and its atomic weight = 58.7. If bohr magneton = $9.27 \times 10^{-24} \, J/T$, the intensity for magnetization of nickel is ____ $\times 10^5 \, A/m$ (round off to one decimal place)
$q_1 = 40 \, N/m$ $q_2 = 20 \, N/m$ 8 m
3. Optics and radiance. [6 points]. The James Webb Space Telescope (JWST) is NASA's successor to the Hubble Space Telescope, and this fantastic telescope just came into operation. JWST features a segmented 6.5-meter diameter primary mirror and is located near the Earth-Sun 2nd Lagrange point,…
Gear E turns in the direction shown by the arrow and drives the other gears. How many of the 4 gears are turning clockwise?
Q.5. Heat balance test was conducted on a 4-stroke petrol engine and the following result were obtained. Draw a heat balance sheet. Fuel consumption = 0.1 kg/min, Calorific value = 42 Mj/kg Air consumption = 1.5kg/min, Specific heat of exhaust gas = 1.0 kJ/kg.K, Temperature of exhaust gas = 420…
Jack underwent radiation therapy using a beam of neutrons to treat a skin cancer on his hand. He received a dose equivalent of 12 mSv that was absorbed in 20 g of tissue. The relative biological effectiveness (RBE) of these neutrons is 11. What absorbed dose of radiation did Jack…
The beam has a rectangular cross section and is subjected to the loading shown in (Figure 1). Determine the state of stress at point B. Suppose that $F_1 = 800 N$. $F_2 = 1050 N$. Determine the normal stress $\sigma_x$. Express your answer to three significant figures and include the…
1. Consider a modified form of Couette flow in which there are two immiscible fluids sandwiched between two infinitely long and wide, parallel flat plates. The flow is steady, incompressible, parallel, and laminar. The top plate moves at velocity $V$ to the right, and the bottom plate is…
5) Şekildeki gösterildiği üzere basitçe desteklenen 8 metrelik bir kiriş, trapez şekilli bir yayılı yüke maruz kalmaktadır. Bu kiriş için maksimum eğilme momentinin yerini ve değerini hesaplayınız. $q_1 = 40 N/m$ $q_2 = 20 N/m$ 8 m
What is the magnitude of the electric field at the point ($7.10\hat{i} - 9.20\hat{j} + 8.50\hat{k}$) m if the electric potential is given by $V = 6.40xyz^2$, where $V$ is in volts and $x$, $y$, and $z$ are in meters?
A conducting rod with length 0.248 m, mass 0.150 kg, and resistance 83.3 $\Omega$ moves without friction on metal rails as shown in the following figure (Figure 1). A uniform magnetic field with magnitude 1.50 T is directed into the plane of the figure. The rod is initially at rest, and then a…
Part A If $a = 300$ mm and $b = 58$ mm, locate the centroid $\bar{y}$ of the beam's cross-sectional area. (Figure 1) Express your answer with the appropriate units. $\bar{y} = $ Value Units Figure 150 mm 150 mm b a 25 mm 25 mm
In the figure, a stone is projected at a cliff of height h with an initial speed of 44.0 m/s directed at an angle $\theta_0 = 61.0^\circ$ above the horizontal. The stone strikes at A, 5.93 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A,…
Two point charges are fixed on the y axis: a negative point charge $q_1 = -24 \, \mu C$ at $y_1 = +0.16 \, m$ and a positive point charge $q_2$ at $y_2 = +0.36 \, m$. A third point charge $q = +8.8 \, \mu C$ is fixed at the origin. The net electrostatic force exerted on the charge q by the…
Consider the system shown below where four point masses are connected to each other by massless rods. Two of the masses are $m = 9 kg$ and the other two have the masses of $M = 2 kg$. If $a = 1.4 m$, $b = 0.9 m$ and the system rotates about $y$-axis, determine the moment of inertia of the…
33. What Kind of NDT test for an overload bearing? 1. Sensetory inspection 2. Grauwler 3. Dye Penetration 4. Thermal Inspection
2. The T-$\theta$ diagram of an internal combustion engine is shown in the Figure. The enclosed areas are $A_1$=400 J, $A_2$=800 J, $A_3$=550 J,$A_4$=150 J. Find the moment of inertia of the flywheel in order to keep the limit 410 to 416 rev/min.
Which of the following corrosion form is depicted in the given figure? Which of the following is/are the reasons for the cause of crevice corrosion? a. The stagnant solution in the holes and gasket surfaces b. The stagnant solution in the lap joints and surface deposits c. Dissimilar metal…
9. A car with front-wheel drive accelerates in the direction shown. Which diagram best shows the direction of the total force exerted by the road on the front wheels? A B C D
6. A stone thrown upward from the ground with a velocity of 15 m/s. One second later another stone is thrown vertically upwards with a velocity of 30 m/sa) When will the stone be at the same level?b) How far above the ground will the stones be at the same level?c) Determine the time the second…
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one): Answer choices Select correct…
I like how you mentioned that: "In this instance, the cup and the boiling water will eventually attain thermal equilibrium with one another since they are both in thermal equilibrium with their surroundings (presuming the room is at a constant temperature). " How is the room temperature going…
Write down a point defect reaction for ZnO in which you produce twice as many singly charged defects as doubly charged ones.
A tuning fork vibrates 650 times in 6 seconds. What is the frequency?
A 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 70 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the circle, it has a speed of…
A curve in a road is banked at 24 degrees. There is a car on the curve. the mass of the car is 1.6 Mg and has a friction constant of .18. A) What is the component of its weight parallel to the incline? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N. B) If the radius of…
The radius of the earth's orbit is 80*10^9, which is the mass of the sun. The average period of the earth's orbit is 365. G=6.67*10^-11
The power output of an automobile engine is directly proportional to the mass of air that can be forced into the volume of the engine's cylinders to react chemically with gasoline. Many cars have a turbocharger which compresses the air before it enters the engine, giving a greater mass of air…
In air, the specific ionization of a beta-minus radiation field is 240 IP/cm. What is the linear energy transfer?
Determine for each of the following functions whether or not it can be the Z12 of a lossless twoport. If not, state your reasons. (a) (82 + 9)(82 + 50) 8(82 + 20)(82 + 25)
Wouldn’t there be momentum reaction forces at the supports A and B because the beam is clamped-clamped? In the solution they are neglegted
A proton travels with a speed of 5.10 ✕ 106 m/s at an angle of 61° with the direction of a magnetic field of magnitude 0.250 T in the positive x-direction. (a) What is the magnitude of the magnetic force on the proton? N (b) What is the proton's acceleration? (Give the magnitude.)
4. (10 points) The maximum weight to be applied to the bit during the 450 inclined interval of the hole is 50,000 Ibm. The drillstring consists of a 5-in., 19.5 Ibm/ft drillpipe and 8x3.25 in. drill collars, and the maximum mud density anticipated is 13 lbm/gal. Compute the minimum length of…
A 19-gg 11-cmcm-long wire is suspended horizontally between the poles of a horseshoe magnet. When the 0.48-AA current in the wire is turned on, the wire jumps up and out of the magnet. Determine the minimum magnetic field required for the wire to jump up and out of the magnet.
Multiple Choice Question A fluorescent microscope uses Blank______ to view a specimen. Multiple choice question. an electron beam ultraviolet light visible light an atomic probe
Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total charge of Q = -0.67 μC.
A beam of electrons is not deflected as it moves through a region of space in which a magnetic field exists.
If at a particular instant and at a certain point in space the electric field is in the +x-direction and has a magnitude of 4.10 V/mV/m, what is the magnitude of the magnetic field of the wave at this same point in space and instant in time? Express your answer in teslas.
Suppose two equal charges of 1.1 C each are separated by a distance of 1.5 km in air
Jessica pushes a box 10 m across the floor. The box has a mass of 20 kg and she uses 30 N of force on the box. How much work did she do on the box? 600 Nxm 200 Nxm 300 Nxm 0 Nxm
the two spheres of equal mass m are able to slide along the horizontal rotating rod. if they are intially latched in position a distance r from the rotating axis with the assmebly rotating freely with an angular velocity w, determine the new angular velocity w after the spheres are released and…
manic episodes are considered distinct when they are seperated by what length of time
In which of the following medium can only electromagnetic waves can travel through? Space Air Water Steel
The equation of potential function is given as \phi =U_(\infty )rcos\theta +(Kcos\theta )/(r) a) Determine the stream function of the flow. b) Determine the circulation in a circular region located at the origin where r=1 c) Determine complex function of the flow.
An electron and a 0.0390-kg bullet each have a velocity of magnitude 455 m/s, accurate to within 0.0100%. Within what lower limit could we determine the position of each object along the direction of the velocity? Step 1 The uncertainty principle states that the product of the uncertainties in…
How can you connect four of them to produce an equivalent resistance of 0.25 k\Omega
Three identical resistors have an equivalent resistance of 50 ΩΩ when connected in parallel. Part A What is their equivalent resistance when connected in series?
A ball strikes the floor vertically and rebounds with a coefficient of restitution of 0.80 . If the v mass of the ball is 0.11 slug and its velocity is 5 ft /sec just before it hits , compute the momentum of the ball as it leaves the floor .
A 54kg person rides an elevator and accelerates upwards at 2.40m/s^2. if the person is standing on a bathroom scale, what does the scale measure?
An alpha particle ( 2 4 He) of initial energy 5.5MeV moves towards the centre of a nucleus of gold-197 ( 79 197Au). What is the distance of closest approach of the alpha particle? A. 1.0 × 10-13m B. 4.1 × 10-14m C. 2.1 × 10-14m D. 6.6 × 10-33m
Explain the construction and working principle of various solar measurement instruments.
It is hung on a wheel with a radius of 0.40 m and mounted on a frictionless bed with the help of a block of rope (see the fix). When the wheel was released from the stationary state, the block was lowered to 1.5 m at 3.00 s without slipping rope. Since the voltage in the rope was 25 N during…
When a monochromatic light of wavelength 435 nm incident on a double slit of slit separation 4 µm, there are 5 interference fringes in its central maximum. How many interference fringes will be in the central maximum of a light of wavelength 632.5 nm for the same double slit? fringes †
is the induced emf? 29.13 •• The armature of a small generator consists of a flat, square coil with 120 turns and sides with a length of 1.60 cm. The coil rotates in a magnetic field of 0.0750 T. What is the angular speed of the coil if the maximum emf produced is 24.0 mV?
Assume that the rate at which radioactive nuclei decay is proportional to the not be of urgent rumber o reforeve nuce have indergrain ampegration in a period of 100 years(a) What percentage of the original radioactive nuclei will remain after 1000 years?(b) In how many years will only…
A 4.0 kg block on a frictionless surface experiences two horizontal forces: F⃗1 = 14.0ˆi N and F⃗2 =−8.0ˆiN. (a) Find the net horizontal force. (b) Determine the block’s horizontal acceleration. (c) Starting from rest, find its velocity after 3.0 s. (d) Determine its displacement after 3.0…
A uniform magnetic field of magnitude 0.58 T is directed perpendicular to the plane of a rectangular loop having dimensions 7.7 cm by 15 cm. Find the magnetic flux through the loop. T · m2
what is the power if force is 140 N and velocity is 10 m/s?
An 70 newton force pushes a 2 kg block up a 45 degree inclined plane to a height of 0.1 meters. At the top the block coasts and slows down on deep pile carpet. The block then slides down another inclined plane and over more carpet before compressing a spring with constant 24 N/ m.
A thin uniform film of oil that can be varied in thickness covers a sheet of glass of refractive index 1.52. The refractive index of the oil is 1.64. Light of wavelength 555 nm is shone from air at normal incidence on the film. Starting with no oil on the glass, you gradually increase the…
You heat a quantity of gas having a temperature of 120°F and a pressure of 300 psi, until its pressure is 800 psi. If the volume of gas remains constant, the final temperature is
In 2005, the spacecraft Huygens landed on one of the moons of Saturn. The data gathered by Huygens were relayed by radio to the Earth by a second satellite in orbit about the moon. Estimate the distance between this moon and the Earth. km Calculate the time required for this radio signal to…
A shopper in a supermarket pushes a cart with a force of 39 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed. (a) Find the work done by the shopper as she moves down a 51.0-m length aisle.
In a typical delivery, the baby's head is delivered first. Group of answer choices True False
It takes a time t=0.68 s for a record to revolve on a record player. A particular point on the record moves past the needle at a speed of vn=0.97 m/s. What is the tangential speed v2 of a point on the record that is at r2=0.05m is m/s
At its lowest setting a centrifuge rotates with an angular speed of ω1 = 350 rad/s. When it is switched to the next higher setting it takes t = 5.5 s to uniformly accelerate to its final angular speed ω2 = 750 rad/s.
(4 points) A large insulated bottle containing 614 mL of water initially at 20∘∘C is cooled by adding ice at 0∘∘C. Assume the specific heat of liquid water is constant at 4.18 kJkg KkJkg K and the density of liquid water is constant at 1000 kgm3kgm3 a) If 70 grams of ice is added to the bottle,…
You're investigating a subway accident in which a train derailed while rounding an unbanked curve of radius 150 mm, and you're asked to determine whether the train exceeded the 50-km/hkm/h speed limit for this curve. You interview a passenger who had been standing and holding a strap; she…
A liquid generally wants to decrease the area of its surface as much as possible
We've learned about three kinds of fields in physics. In Physics I the concept of a field, as introduced by Michael Faraday, was first used to explain gravitational forces. In the past couple of weeks, we've learned about electric and magnetic fields and forces. Compare and contrast electric…
Write the formulas to be used in the thesis topic "Dynamic Analysis of Bevel Gears by ANSYS".
Calculate the energy of a He + ion in its first excited state. Ans: : Substitute; n = 2 ; Z = 2 and calculate answer.
A stick can rotate freely about its lower end, where the pivot is located. A force F acts halfway up the stick. In the two drawings, A and B, the force has the same magnitude F and is acting at the same spot. A F~ B F~ How does the magnitude of the torque τ about the pivot differ in these two…
Consider a 10-meter-high building. A soccer ball is projected horizontally from the rooftop with an initial velocity of 5 m/s. At the exact moment, a projectile is launched from ground level at an angle of 30 degrees above the horizontal with an initial velocity of 20 m/s. Analyze whether a…
During a very quick stop, a car decelerates at 7.4m/s. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires (and that they do not slip on the pavement). How many revolutions do the tires make before coming to rest, given their initial angular…
the speed of light is approximately $299 million meters per second what is the speed of light in meters per second using scientific notation
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one): Answer choices Select correct…
Calculate the specific ionization of Pa-234m average beta in air. Express answer in ip/cm.
Consider the inelastic collision. Two lumps of matter are moving directly toward each other, Each has a mass of kg and is moving at a speed of 0.930cThe two lumps collide and stick togetherAnswer the questionskeeping in mind that relativistic effects cannot be neglected in this case. What is…
What is the tangential speed of a lug nut on a wheel of a car if the lug nut is located 0.114 m from the axis of rotation; and the wheel is rotating at 6.53 rev/sec? 4.68 m/s 1.49 m/s 9.36 m/s 2.98 m/s 0.745 m/s
Calculate the kinetic energy (SI and AES units) of 1 mole of oxygen traveling at a linear speed of 101 m/s(331.4ft/s)
What is the most practical way to measure an athlete's pulse during exercise? Select one: a. Count the number of total beats in sixty seconds from the carotid pulse b. Count the number of beats in six seconds and then add a zero c. Count the number of beats in sixty seconds from the brachial…
? are represented by two numbers. a. Scalars b. Vectors c. All the above d. Neither of the above
Atom AA has fourfold as long a half-life as atom BB. If both of them start out with an amount N0N0, then in the time that AA has been reduced to N0/2N0/2, BB has been reduced to
This time, V = 64.8 V; R1 = 83 Ohms; R2 = 195 Ohms; R3 = 85 Ohms; R4 = 128 Ohms; R5 = 101 Ohms; and R6 = 179 Ohms. How much current flows through resistor R3?
A loaded cargo train car with mass 25,000 kg is coupled to an empty car with mass 3,300 kg. A locomotive applies a force of 64 kN (kilo-Newtons) to the empty car. Find the tension in kN in the coupler between the two cars.
Charges in a conductor in electrostatic equilibrium are: moving with constant speed.at rest.moving with constant acceleration.
A mass of 0.25kg hangs from a spring of spring constant 4.0Nm-1 . What is the natural frequency of oscillation for this system? A. 0.50Hz B. 0.64Hz C. 1.6Hz D. 2.0Hz
A 62 gg firecracker is at rest at the origin when it explodes into three pieces. The first, with mass 16 gg , moves along the xx axis at 32 m/sm/s in the positive direction. The second, with mass 16 gg , moves along the yy axis at 33 m/sm/s in the positive direction. Part A Find the…
a) At a point in a component subjected to combined loading, there are two planes perpendicular to each other where the stresses are dx = -200 MN/m^2 and dy = 100 MN/m^2. On each of these planes there is a shear stress 45 MN/m^2. Draw to scale Mohr's circle for stress and using the Mohr's circle…
Question 6 (4 points) A monochromatic beam of light has a wavelength of 486 nm. It is diffracted through a set of double slits, and produces a maxima of order 4 at an angle of 3.00 degrees. What is the separation of the slits in m?
What is the frequency of a light whose wavelenght is 650nm
1. (a) What value of n is associated with the 94.96 nm spectral line in the Lyman series of Hydrogen ? (b) Could this wavelength be associated with the Paschen or Balmer series ? Ans: (a) n=5 ; (b) this wave length cannot be associated with the Paschen or Balmer series
An aircraft travelling from Melbourne to Maryborough (a distance of 170km) is able to travel at an average speed of 250km/h on the way there and 170km/h on the way back (due to wind and other factors). Which of the following statements is true (you can select more than one): Answer…
A swimmer training for a 100m freestyle race records times of 90 seconds, 83 seconds and 88 seconds. This corresponds with speeds of 1.11 m/s, 1.20 m/s, and 1.14 m/s respectively. Which of the following statements is true (you can select more than one):
Linearly polarized light propagating along the y direction is incident on a polarizer whose axis is parallel to the z direction. If the intensity of the transmitted light is equal to 14% of the incident intensity, what is the angle of polarization of the incident light? °
If initial velocity is zero and final velocity is 30 m/s and time is 10 s then find out the acceleration?
An L-C circuit has an inductance of 0.370 H and a capacitance of 0.200 nF . During the current oscillations, the maximum current in the inductor is 2.00 A
An 18 mm wide diffraction grating has rulings of 810 lines per mm. Light is incident normally on the grating. Monochromatic light of 662 nm wavelength is used. The largest angle from the normal at which an intensity maximum is formed is closest to:
A car speeds along the curved exit ramp of a freeway. The radius of the curve is 80.0 m. A 70.0-kg passenger holds the armrest of the car door with a 220-N force in order to keep from sliding across the front seat of the car. (Assume the exit ramp is not banked and ignore friction with the car…
The fastest speed ever recorded in space travel is 24,791 mph. The closest star to Earth, other than the sun, is named Proxima Centauri and is 25,000,000,000,000 miles away. If a spaceship traveled at the record speed, how many years would it take to reach Proxima Centauri?
An object travels at a velocity of -54 m/s for 11 seconds. What is its speed? -4.9 m/s2 54 m/s 4.9 m/s 54 m/s2
a man pushed his 12 kg lawnmower across his lawn at constant speed applying force G = 100 N at an angle 0 = 40 degrees relative to horizontal. what is the coefficient of friction between the lawnmower and the lawn? ignore the friction internal to the lawnmower
Consider a sound wave moving through the air modeled with the equation s(x, t) = 7.00 nm cos(54.00 m−1x − 19.00 ✕ 103 s−1t). What is the shortest time (in s) required for an air molecule to move between 3.50 nm and −3.50 nm? s
A Blank difference is created by Blank positive charge from Blank charge.
A shopper in a supermarket pushes a cart with a force of 39 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed. (c) The shopper goes down the next aisle, pushing horizontally and maintaining…
Answers may be entered into WebAssign as numeric values, including the use of scientific notation. When entering numeric values, a period should be used to represent a decimal, and commas should not be used at all. When using scientific notation, WebAssign uses the common lower-case "e" format,…
The displacement x of a particle at time t is given by x = 5sin^2(t), where x is in meters and t is in seconds. A simple pendulum has the same period as the particle when the length of the pendulum is (A) 10.0m (B) 5.0m (C) 2.5m (D) 2.0m.
A flow is considered to be turbulent if its Reynolds number is larger than 4000 and laminar if its Reynolds number is smaller than 2300. The flows with Reynolds numbers between 2300 and 4000 are known as transition. At 1000 RPM, 1500 RPM and 2000 RPM flows have Reynolds numbers of 37389, 54384…
What is the strength of the electric field 2.0 cmcm from a small glass bead that has been charged to ++ 7.0 nCnC ? Express your answer in newtons per coulomb.
Transform vector into spherical coordinate and then evaluate it at the indicate point (-1,0,2) if you know vector B=((x^2) +( y^2) +(z^2) )j - (( x^2) + (y^2) ) k. Thank you.
A cow is grazing in a field. By observing the path that she cuts through the grass, you find that her velocity is: 𝑣→=(0.3𝑚𝑠−0.07𝑚𝑠3𝑡2)𝑖̂ +(0.4𝑚𝑠2𝑡)𝑗̂ v→=(0.3ms−0.07ms3t2)i^+(0.4ms2t)j^ What are the magnitude and direction of her acceleration at t = 10 s? Assume that the positive x-direction is…
A 2.5 kg object initially moves at 1.5 m/s on a frictionless track. A constant horizontal force F = 10.0 N acts on it over 4.0 m. (a) Find the initial kinetic energy. (b) Determine the work done by the force over 4.0 m. (c) Use the work-energy theorem to find the final kinetic energy. (d)…
A pendulum that has a period of 3.27000 s and that is located where the acceleration due to gravity is 9.77 m/s2 is moved to a location where it the acceleration due to gravity is 9.80 m/s2. What is its new period? (Enter your answer in seconds and to at least 5 decimal places.)
Refraction was an area of difficulty for the particle theory of light. What phenomena of refraction were not known to Newton and his fellow supporters of the particle theory?
Your post is very interesting. When you mentioned the third system being applied to the problem for Thermal equilibrium, the constant room temperature, I was thinking the cup would have been at room temperature. Which I stand corrected I overlooked the mention of the water in the cup. So your…
.A 2.5 kg cold water at 18⁰C is filled in a 1200-W teapot. The teapot has a mass of 0.8 kg. The water is then heated until the water is boiled. Determine the time needed for the heater to heat the water. Assume that the thermal properties of water and teapot is constant and heat loss is…
1- A hot upset forging operation is performed in an open die. The initial size of the workpart is: Do = 25 mm, and ho = 50 mm. The part is upset to a diameter = 50 mm. The work metal at this elevated temperature yields at 85 MPa (n = 0). Coefficient of friction at the die-work interface =…
Assume that the lower leg and the foot have a combined mass of 3.6kg, and that their combined center of gravity is at the center of the lower leg. How much force must the tendon exert to keep the leg in this position?
(a) An electron has a kinetic energy of 4.98 eV. Find its wavelength. nm (b) A photon has energy 4.98 eV. Find its wavelength. nm
A steel bar of length 4 meters and cross-sectional area 0.01 m² is subjected to a tensile force of 80,000 N. Calculate the elongation of the bar if the Young's modulus for steel is 2 x 1011 N/m².
compare staggered and colocated grid. state the advantages of one over the other
A thin metallic foil is sandwiched between two electrically insulating slabs of constant thermal conductivity k
3. (10 points) A solenoid of length 12 cm carries a current of 3.1 mA along 400 turns of wire. Find the magnitude of the magnetic field inside the solenoid.
The steel cables supporting the "Lion's Gate" suspension bridge are approximately 1200 meters long. If the temperature ranges from -9° to +26 ° C between winter and summer extremes, calculate the variation in the length of the cables. Linear coefficient (steel): 12 x 10-6/°C. I need each and…
Light having a wavelength in vacuum of 600 nm enters a liquid of refractive index 2.0. In this liquid, what is the wavelength of the light? (c = 3.0 × 108 m/s) 200 nm 1200 nm 300 nm 600 nm
The following test data were obtained with a freon 12 vapor compression refrigeration system operating a test steady state 700 KPA
Calculate earths mass given the acceleration due to gravity at the north pole is 9.789m/s^2 and the radius of the earth at the pole is 6356.8kg
A person lifts an 80 lb bag of cement of 3.5 ft in the air how much work is done
Assume that the rate at which radioactive nuclei decay is proportional to the not be of urgent rumber o reforeve nuce have indergrain ampegration in a period of 100 years(a) What percentage of the original radioactive nuclei will remain after 1000 years?(b) In how many years will only…
Suppose you are standing on the time meridian of 75 W, what would be the next time meridian to your west? Group of answer choices a. 76 W b. 90 W c. 100 W d. 180 W
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