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Physics 101 Mechanics Q&A Archive of May 16, 2023

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May 16 of 2023

5. A hydraulic press for compactinz ponvdered samples has a lage cylinder with arca \( =0.025 \mathrm{~m}^{2} \), and a small cylinder with area \( =0.001 \mathrm{~m}^{2} \) (figure below). A foece of \( 640 \mathrm{~N} \) is applied to the small cylinder as shown. The sample, which is placedā€¦
A circular surface with a diameter of 1 km has a depth of 10 m. The incident solar radiation has a power of 200W/m^2. If the water absorbs all this solar energy and does not exchange heat, how long does it take for the water to warm up to a uniform temperature of 10Ā°C to 20Ā°C
A farmer has a conservatory with a total wall area of 51.5 m^2 where that the thermal resistance of the material is 9.56 m^2*K/W. The area of the glass is 32.3 m^2 and the respective thermal resistance is 0.21 m^2*K/W. The glass transmits solar energy at 112 W/m^2. What should be the minimumā€¦
Water with a temperature of 80Ā°C is pumped through a tube made of stainless steel (16W/m*K) 100 m long. The pipe has inner and outer diameters of 47 and 50 mm, respectively. The heat transfer coefficient is 2000 W/(m^2*K). The outside of the tube loses heat by convection to the outside air,ā€¦
A technologist is standing at a distance of 7 feet from the tube and receives a dose of 0.29 mGy. How much radiation will he receive at 2 feet if all technical factors remain the same?
Imagine that you are traveling on a train and you have a drink sitting on the dining table in front of you. The train suddenly stops and the drink ends up in your lap. What force acting on the drink is responsible for its sudden motion?
Two concentric spherical conductive shells of radii 5 cm and 10 cm are charged with 4 Ī¼C and 1 Ī¼C, respectively. What is the electric potential at r=0, r=7.5cm, and r=15cm?
Hello ! I need solution and answer
A mason advises a homeowner to insulate his concrete foundation with 5 cm of Styrofoam. To reinforce his point, the mason tells him that if you don't use Styrofoam, the foundation will have to be many times thicker to have the same insulating effect as the thin layer of Styrofoam. How thickā€¦
(b). Verify whether the given electric field \( \mathbf{E}=3 x^{2} y \mathbf{i}+\left(y z-3 x y^{2}\right) \mathbf{j}-\left(z^{2} / 2\right) \mathbf{k} \) is a solenoidal field or not. (10 marks)
Two blocks are connected by a massless string that passes over a massless pulley. The coefficient of static friction between mass 1 and the table is 0.45. The coefficient of kinetic friction is 0.35. Mass 1 is 45 kilograms and Mass 2 is 12 kilograms. a) Draw a free-body diagram for the above.ā€¦
E.) \&x Accessibility: Investigate Dashboard - Smart... W Assignment 1 gr 12...
Assignment:1 Grade 12 Advanced Chapter: Electromagnetic Induction 9.31 A metal loop has an area of 0.100 \( \mathrm{m}^{2} \) and is placed flat on the ground. There is a uniform magnetic field pointing due west, as shown in the figure. This magnetic field initially has a magnitude of \( 0.123ā€¦
An object this thrown vertically upward. At the top of its flight, when its velocity is momentarily 0, its acceleration is 0. True or false
11. A noisy grinding machine in a factory produces a sound intensity of \( 1.00 \times 10^{-5} \) W/ \( \mathrm{m}^{2} \) at a certain location. Calculate the decibel level of this machine at that poin a. \( 70.0 \mathrm{~dB} \) b. \( 72.0 \mathrm{~dB} \) c. \( 74.0 \mathrm{~dB} \) d. \( 76.0ā€¦
An object is traveling north and slowing down, the directions associated with the velocity and acceleration of the object, respectively are:
Points A \& B are mid points of sides of rectangle. Replace the given force \( \mathrm{F} \) acting at \( \mathrm{A} \) by equivalent force-couple system at point \( \mathrm{B} \) a s shown in Fig. 1 b.
a box of mass 10kg is resting on the smooth (frictionless) horinzontal surface of a table. Determine the acceleration of the box when a person pulls it upward with a force of 100N.
III. Determine the parameter to be tested in each situation. Translate it into symbols. ASSIMILATION
An electron is bound in a square well of width 1.50 nm and depth U0 = 6E1. If the electron is initially in the ground level and absorbs a photon, what maximum wavelength can the photon have and still liberate the electron from the well?
A lava bomb with a mass of 15.4 tonnes that is at its solidification temperature (984Ā°C) lands in a pool that has a total mass of water of 20.4 tonnes at 24Ā°C. The latent heat of the lava bomb is 419 kJ/kg and the specific heat of lava is 1.04 kJ/(kg*k). Assume that the pool does not overflowā€¦
An object is subject to the force ~F = (25 N, āˆ’75 N). If the magnitude of its acceleration is 24 m/s2, what is its mass?
An object moves with constant speed of 27.7 m/s on a circular track of radius 100 m. What is the magnitude of the object's centripetal acceleration?
A 0.750kg rubber ball drops from a height of 2.15m to the ground. it then bounces back up toa lower heigh, losing 3.2J of energy in the process of falling, rebounding and going upward again. A) How much potential energy did the ball lose on the trip down? B) How much potential energy doesā€¦
John walks \( 4.8 \mathrm{~km} \) due north from point A to \( \mathrm{B} \) and then covers a further \( 6 \mathrm{~km} \) due east to \( \mathrm{C} \). What is the shortest distance from \( \mathrm{A} \) to \( \mathrm{C} \) ?
A block of weight 30.0 N sits on a frictionless inclined plane, which makes an angle 35.0 Ā° with respect to the horizontal, as shown in the figure. A force of magnitude 17.2 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. The blockā€¦
How much water overflow when a Pyrex vessel filled to the brim with 1L(1000cm^3) of water at 20Ā°C is heated to 90Ā°C? The coefficient of volume expansion of Pyrex and water are 9*10^-6Ā°C^-1 and 2.1*10^-4Ā°C^-1 respectively
Use the values of physical constants as given here: Speed of light in vacuum: \( c=2.998 \times 10^{8} \mathrm{~m} / \mathrm{s} \); Planck's constant: \( h=6.626 \times 10^{-34} \mathrm{~J} \cdot \mathrm{s} \); Reduced Planck's constant: \( \hbar=1.055 \times 10^{-34} \mathrm{~J} \cdotā€¦
and \( v_{R_{1}} \) and the current \( i_{C} \) after the switch is thrown i position 1. b. Find the values of \( v_{C}, v_{R_{1}} \), and \( i_{C} \) when the switch moved to position 2 at \( t=100 \mathrm{~ms} \). c. Write the mathematical expressions for the voltages and \( v_{R_{2}} \) andā€¦
Type question here (Keep it short & clear to get the best answer)
A body is projected at an angle of \( 45^{\circ} \) with horizanto with a velocity of \( 60 \sqrt{2} \mathrm{~m} / \mathrm{s} \). Then angle made by its velocity after \( G S \) is
A 500g block of copper at a temperature of 80Ā°C is immersed in 1kg of water at 10Ā°C. What is the joint final temperature and how much is the change in entropy of the system.
Oxygen freezes at -362F.what is the celcuis equivalent of this temperature?
please answer the question attached
answer the question below
In preparing tea,600g of water at 90Ā°c is poured into a 200-g chinapot(cpot ==0.84kJ/kĀ°C) at 20Ā°C. What is the final temperature of the water?
Answer the question attached
Steam at a pressure of 0.385 bar and a dryness fraction of 0.9 enters a condenser. Assuming the steam leaves the condenser as saturated water, calculate the heat transferred during the process for each kg of steam. (13 marks)
How much steam at 15Ā°C is needed to melt 1kg of ice at 0Ā°C?
Answer the question in the photo attached
5. A charge of \( 6.0 \mu \mathrm{C} \) experiences a force of \( 2.0 \times 10^{-3} \mathrm{~N} \) in the \( +\mathrm{x} \)-direction at a certain point in space. a) What was the electric field at that location before the charge was placed there? b) Describe the force a \( -2.0 \mu \mathrm{C}ā€¦
A block body is at a temperature of 500Ā°C.what should itā€™s temperature be in order that it radiates twice as much energy per second.
A marble rolling with a speed of 20 cm/s, rolls off the edge of a table that is 80 cm high. How long does it take to drop to the floor?
A wooden cube with a side of \( 6 \mathrm{~cm} \) and a density of \( 650 \mathrm{~kg} / \mathrm{m}^{\wedge} 3 \) is placed in a bucket containing a mixture of oil and water. An oil layer with a thickness of \( 1 \mathrm{~cm} \) has a density of \( 850 \mathrm{~kg} / \mathrm{m}^{\wedge} 3 \).ā€¦
5. Find the \( x \) and \( y \) components of each of the forces shown.
The diagram given below shows a uniform rigid rod AB of length 2, 6 m and mass 5, 8 kg and a uniform rigid circular hoop of radius r and mass 1, 6 kg. (The diagram is not to scale.) The rod and the hoop are both at rest in equilibrium in the same vertical plane on a rough horizontal surfaceā€¦
When a 0.184-kg mass is attached to a vertical spring, it causes the spring to stretch a distance d. If the mass is now displaced slightly from equilibrium, it is found to make 65.0 oscillations in 10.7 s.
The diagram given below shows a non-uniform continuum body in the form of a circular cylinder X1^2 + X2^2 = 4 in its reference (undeformed) configuration that is bounded below by the planes X3=12 and X3=0 respectively. If the density of the body is: p(X1, X2, X3) = 60X3/(5-(X1^2 +ā€¦
The diagram given below shows a continuum body in the form of a circular cylinder in its reference (undeformed) configuration. A line L is drawn on the surface of the cylinder parallel to the X3-axis from the bottom of the cylinder to the top of the cylinder as indicated in the diagram givenā€¦
The diagram given below shows a continuum body that is in the form of a thin circular sheet (radius R = 0,4 units) in its reference (undeformed) configuration. If the body undergoes a motion that is defined by the equations: x1 = 9X1 + 7X2 x2 = 7X1 + 9X2 then the area of the continuumā€¦
Assuming all the ropes in the figure are vertically aligned, the rope from point A v0 = 0.2 Find the velocity and acceleration of the mass G if it is pulled with a velocity of m/s and an acceleration of a0 = 0.2 m/s2
By the hydraulic piston in package A B, which is released from the frictionless surface in the figure. is being stopped. The hydraulic mechanism B applies a constant force of 2000 N and the impact It can stop the A package at a distance of 100 mm after it is realized. (Comment: in packageā€¦
The line which passes through the origin and intersects the two lines \[ \frac{\mathrm{x}-1}{2}=\frac{\mathrm{y}+3}{4}=\frac{\mathrm{z}-5}{3}, \frac{\mathrm{x}-4}{2}=\frac{\mathrm{y}+3}{3}=\frac{\mathrm{z}-14}{4} \] , is
The ideal angle of release for most basketball shooters is at 45ā°. Dirk Nowitski has a release with an angle of 55ā°. Given an initial velocity of 6 m/s, compare the maximum heights of the shots between the shooters.
Part A - Find the period of block 1 in the figure (Figure 1), given that k = 50.0 N/m and m = 1.60 kg . Part B - Find the period of Block 2
A mass oscillates on a spring with a period of 0.77 s and an amplitude of 5.7 cm. Find an equation giving x as a function of time, assuming the mass starts at x=A at time t=0.
A body at rest and of mass 5kg is acted upon by a force 20newton for 0.2seconds .find the decrease in momentum
By the hydraulic piston in package A B, which is released from the frictionless surface in the figure. is being stopped. The hydraulic mechanism B applies a constant force of 2000 N and the impact It can stop the A package at a distance of 100 mm after it is realized. (Comment: in packageā€¦
9.54 Use the node-voltage method to find \( \mathrm{V}_{o} \) in the circuit in Fig. P9.54. Figure P9.54
white round is a hole. where is the center of gravity
1). 09.45 12. Kakek memiliki sebidang tanah seluas \( 50 \mathrm{dam}^{2} \), Tanah itu diwariskan kepada ayah seluas \( 0,2 \mathrm{ha} \), paman seluas 15 are, dan bibi seluas \( 1000 \mathrm{~m}^{2} \), Sisa tanah diwaqafkan untuk sarana umum. luas tanah yang di waqafkan adalah
3. Diagram batang di bawah ini menunjukkan hasil panen ikan nila (dalam kuintal) dari bulan Januari-April 2023. Persentase kenaikan penjualan dari bulan Maret-April adalah ... \%. a. 56,5 b. 46,5 d. 26,5 C. 36,5 e. 16,5
A two-storey steel special moment resisting frame has the following information: Level Column Height (m) Load (kN) Ground Floor 4.0 0 2nd Floor ā€¦
7. A material is applied load and the table below gives each load's corresponding strain values. After the fracture, the gage length is 3.014 in., and the diameter is 0.374 in. Plot (4 pts) the data and calculate; a-) the 0.2% offset yield strength b-) the tensile strength c-) theā€¦
A crank 2 1ā„2 in. long, revolves about a point in the frame 1, and the other end of 2 is connected to a link 3, which is 5 1ā„2 in. long. A link 4, 1ā„2 in. long, is free to move about a fixed point in 1. The fixed point of 4 is 3 in. to the right and on a horizontal line with the fixed point ofā€¦
bisis. Use the infermation in the table to answer the questions that follow. 3.1 Nes Mabaspecked is a registered resheret and she used tat ki of wator for the Month of Atigust 2022 Galeulate her water bil exclading VAT. The Polokwane Local mumicipality 2021 tarif for prepald electricity agpoarsā€¦
\begin{tabular}{|c|c|c|c|} \hline \( 16-20 \) & 11 & \( 16-0.5=15.5 \) & \( 27+11=38 \) \\ \hline \( 11-15 \) & 9 & \( 11-0.5=10.5 \) & \( 18+9=27 \) \\ \hline \( 6-10 \) & 12 & \( 6-0.5=5.5 \) & \( 6+12=18 \) \\ \hline \( 1-5 \) & 6 & \( 1-0.5=0.5 \) & 6 \\ \hline \end{tabular}\( \quad \) (19ā€¦
A truck travels 10km east from the origin with an average velocity of 20km/^-1. Then make a sharp left turn and travel for another 45 minutes with an average velocity of 12m/s. A vulture was also released from the origin and follows the shortest path possible. Suppose the two leave the originā€¦
thoughtful
B- Read the following items carefully. On your answer sheet, write the letter of the BEST ANSWER from the glven options. 1. What force enables objects to reach the ground? A. Frictional Force B. Magnetic Force C. Graviational force 0. Tensionforee 2. What is the shape of the irajeciary of aā€¦
Q.12. Show that the following equation is dimensionally correct: (i) \( f=\frac{1}{2 L} \sqrt{\frac{T x C}{m}} \) (ii) \( V=\sqrt{\frac{T}{\mu}} \)
2. A skateboard is rolling at a velocity of \( 3.0 \mathrm{~m} / \mathrm{s} \) with a momentum of 6.0 \( \mathrm{kg} \cdot \mathrm{m} / \mathrm{s} \). What is its mass?
1. A crane released a block of mass m 5.0 kg from a height h of 2.0 m towards a spring with spring constant k of 85 N/m as shown in the figure. Air resistance with a magnitude of 30.0 N acts on the block as it moves through the vertical height h. By how many meters was the spring compressed?ā€¦
the number of copper atoms per 2cm^3 of copper, where the mass of copper atom is 1.06x10^-25 kg, and density of copper is 8920 kg/m^-3
3. Consider a linear chain where the spin \( S_{i} \) at each site takes on three values \( S_{i}=-1,0,+1 \). The spins interact via a Hamiltonian \( -\beta H=\sum_{i=0}^{\infty} S_{i} S_{i+1} \). Write down the transfer matrix explicitly. Use the symmetry properties to find the largest eigenā€¦
Use Hamiltonian method to solve this problem : A simple pendulum consists of a mass m suspended from a fixed point by a weight- less, extensionless rod of length /. Obtain the equation of motion and, in the approximation that sin 0 = 0, show that the natural frequency is wo= Vg/l, where g isā€¦
his power output? 4. A \( 3.00-\mathrm{kg} \) crate slides down a ramp. The ramp is \( 1.00 \mathrm{~m} \) in length and inclined at an angle of \( 30.0^{\circ} \), as shown in Figure 8.8. The crate starts from rest at the top, experiences a constant frictional force of magnitude \( 5.00ā€¦
8. 0,1 va \( 0,2 \mathrm{C} \) nuqtaviy zaryadlar bir-biridan 20 \( \mathrm{cm} \) masofada joylashgan. Zaryadlarni tutashtiruvchi kesma o'rtasida yotgan nuqtadagi elektr maydon potensiali qanday (V)? (Berilgan kattaliklar to ' \( \mathrm{g} \) 'ri yozilsa 0,5 ball; ma'ruzadagi umumiy formulaniā€¦
4. 2 While there are people who protest to get their rights back, a large number of people might join protests for completely different reasons.' Critically discuss THREE negative reasons why some people join protest actions. \[ (3 \times 4)(12) \]
A 75 kg Prof. Dowben attaches himself to a taunt vertical bungee cord making a mass - spring system. The bungee cord stretches 7m? What is the spring constant of the bungee cord?
A force of 36 N is used to displace the end of a spring 0.12 m. What is the force constant of the spring?
An incompressible nonviscous fluid (water) goes through a water hose of 1 cm radius at 0.05 kg/sec. I block off half the water hose with my thumb. How fast does the water exit the hose ? The density of water is 1 gram/cm3 .
Dowben decides to become a submariner and visits the ocean floor with a Woods Hole submersible. At 1000 m below sea level, what is the pressure on the submersible?
A uniform sign of weight ( F_{g} ) and width ( 2 L ) hangs from a light, horizontal beam hinged at the wall and supported by a cable. Determine (a) the tension in the cable and (b) the components of the reaction force exerted by the wall on the beam in terms of ( F_{g}, d, L, ) and ( hetaā€¦
3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100 N/m) at point A. It was released and started moving along the horizontal surface (Ī¼k = 0.2) until it moves up along the inclined surface (Ī¼k = 0.3). The box then stops at point D alone the incline.ā€¦
2. A 2.0-kg block was released from rest at point A. It then moves through point B until it finally stops at point C. The plane is inclined at an angle Īø of 32.0o from the horizontal and the incline stands at a height h of 3.0 m. The coefficient of kinetic friction from point A to B isā€¦
block diagram of a simple servo system is shown in given figure below. Find Figure 3 The characteristics equation of the system Undamped frequency of oscillations Damped frequency of oscillations Damping ratio Damping factor Maximum overshoot First undershoot Time interval after which maximumā€¦
- A museum of modern art is displaying an irregular 426-N sculpture by hanging it from two thin vertical wires, \( A \) and \( B \), that are \( 1.25 \mathrm{~m} \) apart . The center of gravity of this piece of art is located \( 48.0 \mathrm{~cm} \) from its
1. A train is initially moving at \( 30 \mathrm{~m} / \mathrm{s} \) on a straight track when the engineer applied the brakes causing it to slow down constantly at \( -1.5 \mathrm{~m} / \mathrm{s}^{\wedge} 2 \). How far did the train cover if the brakes are applied for \( 20 \mathrm{~s} \) ? 2.ā€¦
The solution for damped simple harmonic motion is given by x Ā¼ ert=2mĆ°C1 ei!0 t Ć¾ C2 e i! 0 t ƞ If x Ā¼ A cos - at t Ā¼ 0, find the values of C1 and C2 to show that x_  !0 A sin - at t Ā¼ 0 only if r=m is very small or -  =2.
Case 2. Critical Damping Ć°r 2=4m2 Ā¼ s=mƞ Using the notation of Case 1, we see that q Ā¼ 0 and that x Ā¼ eptĆ°C1 Ć¾ C2ƞ. This is, in fact, the limiting case of the behaviour of Case I as q changes from positive to negative. In this case the quadratic equation in  has equal roots, which, in aā€¦
Type question here (Keep it short & clear to get the best answer)
A circular surface with a diameter of 1 km has a depth of 10 m. The incident solar radiation has a power of 200W/m^2. If the water absorbs all this solar energy and does not exchange heat, how long does it take for the water to warm up to a uniform temperature of 10Ā°C to 20Ā°C
Imagine that you are traveling on a train and you have a drink sitting on the dining table in front of you. The train suddenly stops and the drink ends up in your lap. What force acting on the drink is responsible for its sudden motion?
Two concentric spherical conductive shells of radii 5 cm and 10 cm are charged with 4 Ī¼C and 1 Ī¼C, respectively. What is the electric potential at r=0, r=7.5cm, and r=15cm?
A mason advises a homeowner to insulate his concrete foundation with 5 cm of Styrofoam. To reinforce his point, the mason tells him that if you don't use Styrofoam, the foundation will have to be many times thicker to have the same insulating effect as the thin layer of Styrofoam. How thickā€¦
Two blocks are connected by a massless string that passes over a massless pulley. The coefficient of static friction between mass 1 and the table is 0.45. The coefficient of kinetic friction is 0.35. Mass 1 is 45 kilograms and Mass 2 is 12 kilograms. a) Draw a free-body diagram for the above.ā€¦
An object this thrown vertically upward. At the top of its flight, when its velocity is momentarily 0, its acceleration is 0. True or false
An object is traveling north and slowing down, the directions associated with the velocity and acceleration of the object, respectively are:
An electron is bound in a square well of width 1.50 nm and depth U0 = 6E1. If the electron is initially in the ground level and absorbs a photon, what maximum wavelength can the photon have and still liberate the electron from the well?
An object is subject to the force ~F = (25 N, āˆ’75 N). If the magnitude of its acceleration is 24 m/s2, what is its mass?
An object moves with constant speed of 27.7 m/s on a circular track of radius 100 m. What is the magnitude of the object's centripetal acceleration?
A 0.750kg rubber ball drops from a height of 2.15m to the ground. it then bounces back up toa lower heigh, losing 3.2J of energy in the process of falling, rebounding and going upward again. A) How much potential energy did the ball lose on the trip down? B) How much potential energy doesā€¦
A block of weight 30.0 N sits on a frictionless inclined plane, which makes an angle 35.0 Ā° with respect to the horizontal, as shown in the figure. A force of magnitude 17.2 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. The blockā€¦
A 500g block of copper at a temperature of 80Ā°C is immersed in 1kg of water at 10Ā°C. What is the joint final temperature and how much is the change in entropy of the system.
In preparing tea,600g of water at 90Ā°c is poured into a 200-g chinapot(cpot ==0.84kJ/kĀ°C) at 20Ā°C. What is the final temperature of the water?
Steam at a pressure of 0.385 bar and a dryness fraction of 0.9 enters a condenser. Assuming the steam leaves the condenser as saturated water, calculate the heat transferred during the process for each kg of steam. (13 marks)
A block body is at a temperature of 500Ā°C.what should itā€™s temperature be in order that it radiates twice as much energy per second.
When a 0.184-kg mass is attached to a vertical spring, it causes the spring to stretch a distance d. If the mass is now displaced slightly from equilibrium, it is found to make 65.0 oscillations in 10.7 s.
Part A - Find the period of block 1 in the figure (Figure 1), given that k = 50.0 N/m and m = 1.60 kg . Part B - Find the period of Block 2
A mass oscillates on a spring with a period of 0.77 s and an amplitude of 5.7 cm. Find an equation giving x as a function of time, assuming the mass starts at x=A at time t=0.
3. Diagram batang di bawah ini menunjukkan hasil panen ikan nila (dalam kuintal) dari bulan Januari-April 2023. Persentase kenaikan penjualan dari bulan Maret-April adalah ... \%. a. 56,5 b. 46,5 d. 26,5 C. 36,5 e. 16,5
A truck travels 10km east from the origin with an average velocity of 20km/^-1. Then make a sharp left turn and travel for another 45 minutes with an average velocity of 12m/s. A vulture was also released from the origin and follows the shortest path possible. Suppose the two leave the originā€¦
thoughtful
1. A crane released a block of mass m 5.0 kg from a height h of 2.0 m towards a spring with spring constant k of 85 N/m as shown in the figure. Air resistance with a magnitude of 30.0 N acts on the block as it moves through the vertical height h. By how many meters was the spring compressed?ā€¦
the number of copper atoms per 2cm^3 of copper, where the mass of copper atom is 1.06x10^-25 kg, and density of copper is 8920 kg/m^-3
A 75 kg Prof. Dowben attaches himself to a taunt vertical bungee cord making a mass - spring system. The bungee cord stretches 7m? What is the spring constant of the bungee cord?
A force of 36 N is used to displace the end of a spring 0.12 m. What is the force constant of the spring?
An incompressible nonviscous fluid (water) goes through a water hose of 1 cm radius at 0.05 kg/sec. I block off half the water hose with my thumb. How fast does the water exit the hose ? The density of water is 1 gram/cm3 .
Dowben decides to become a submariner and visits the ocean floor with a Woods Hole submersible. At 1000 m below sea level, what is the pressure on the submersible?
A uniform sign of weight ( F_{g} ) and width ( 2 L ) hangs from a light, horizontal beam hinged at the wall and supported by a cable. Determine (a) the tension in the cable and (b) the components of the reaction force exerted by the wall on the beam in terms of ( F_{g}, d, L, ) and ( hetaā€¦
3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100 N/m) at point A. It was released and started moving along the horizontal surface (Ī¼k = 0.2) until it moves up along the inclined surface (Ī¼k = 0.3). The box then stops at point D alone the incline.ā€¦
2. A 2.0-kg block was released from rest at point A. It then moves through point B until it finally stops at point C. The plane is inclined at an angle Īø of 32.0o from the horizontal and the incline stands at a height h of 3.0 m. The coefficient of kinetic friction from point A to B isā€¦