Home
Ask directory
Physics 101 Mechanics
July 2025
11
Physics 101 Mechanics
Q&A Archive of
July 11, 2025
Select Question
July 11 of 2025
A ball is thrown verically upward then comes straight back down. If the air resistance is negligible 1.) during the balls flight up, is the velocity positive, negative, or zero? Explain 2.) during the balls flight up, is the acceleration positive, negative, or zero? Explain
A coal fired electric plant in the Ohio river valley was one of the most efficient heat engines ever built. Its Carnot efficiency was 42%. Given this fact, what can we say about its actual operating efficiency?
Newton's second law states that the force exerted by a spring is directly proportional to the distance the spring is stretched or compressed, as long as the spring is not stretched or compressed beyond its elastic limit. Question 26 options: TrueFalse
A coil is rotated in a magnetic field about an axis perpendicular to the field. During each rotation, how many times does the flux through the coil equal zero? Group of answer choices more than 4 0 2 4 1
Ignoring air resistance, an object that has been falling from an airplane toward the surface of the Earth has an acceleration that is Question 28 options: accelerating constant equal to the 1/100 times the square of the inverse of gravity. decelerating
As a main sequence star transitions into a red giant, its core can be said to _______ and _______, whereas the envelope of the star will ________ and _______. Question 3 options: contract; heat; expand; cool expand; cool; contract; heat expand; heat; expand; cool
Suppose you hold a ping pong ball 2ft above a basketball such that their centers are NOT on the same vertical line. If you drop the ping pong ball onto the basketball, after collision, it bounces off side-wise and does not come toward your hand. This collision is called
What conditions must be constant in order to assume the specific heat is constant? Question 2 options: Relatively small temperature changes during a process Need the exact solution over a large temperature range Somewhat larger temperature changes with an average specific heat
When using the tips-to-tail method to find the sum of two vectors, you place the tail of vector B at the tip of vector A and the resultant vector will then extend from the tail of A to the tip of B. Question 34 options: TrueFalse
A cube has an edge length of 5 cmcm . Part A If it is divided up into 1-cmcm cubes, how many 1-cmcm cubes would there be?
Vector subtraction F1-F2 can be considered as a special vector addition namely suppose that the cases of vector addition 1 and 2 in this experiment were cector subtraction f1-f2
When using an OBJECT for a visual aid, what is the best tip? Group of answer choices Bring an object for everyone in the audience to hold Pass the object around Practice with your object beforehand Show the object for 30 seconds only
Newton is the SI unit of force. One Newton is equal to Question 7 options: 1 kgm/s2 1 m/s 1 kgm/s 1 kg/s
Bonnie sits on the outer rim of a merry-go-round, and Klyde sits midway between the center and the rim. The merry-go-round makes one complete revolution every two seconds. Who has the larger angular velocity ?
The speedometer on a car tells you the vehicle's Question 12 options: weight / distance instantaneous speed rate of change in velocity acceleration velocity average speed average velocity
a circle is a special ellipse one with both focu at the same point. the eccentricity of a circle is zero the value of an orbit may run from 0 to almost one
Once the rockets fire initially, why do they keep going until the spacecraft leaves the atmosphere? Why not just give an initial push to get it off the ground?
A baseball player bats a ball with a force of 1000 N. The force that the ball exerts against the bat is Group of answer choices A. less than 1000 N. B. more than 1000 N. C. 1000 N. D. impossible to determine.
when the proton is at location A, what is the direction of the proton's momentum ?
According to the law conservation of linear momentum the total momentum of the system of particles before collision is equal to total momentum after collision. Question 37 options: TrueFalse
Suppose you start at the origin, move along the x-axis a distance of 9 units in the positive direction, and then move downward a distance of 5 units. What are the coordinates of your position? (x, y, z)
what is the strength of the linear relationship between footlength and height for Ginas friends
When an object rotates, the number of rotations or revolutions per unit of time is called Question 12 options: Rotational Speed Tangential speed Centripetal speed
Note that the electric field strength between the plates is determined by the dielectric constant of the material between the plates.
standing wave is formed as a result of Group of answer choices Resonance Constructive and destructive interferences Coherence Phase matching
Considering Betelgeuse and Eta Carina, which of the following is TRUE? Question 17 options: Only Betelgeuse will go supernova Only Eta Carina will go supernova. Both will go supernova.
A person standing in front of a screen as shown red and green lights are turned on and create the shadows as shown what color is on the screen indicated by five what color is shadow eight
When floating, which force is greater: gravitational force (weight) or buoyant force? Defend your answer using Newtonās laws.
The mass of a newborn baby's brain has been found to increase by about 1.6 mgmg per minute. How long does it take for the brain's mass to increase by 0.0080 kgkg ?
You are driving your car down the freeway at an average speed of 62.45 miles per hour. How many kilometers can you travel if you drive nonstop for 78.7 minutes? (1 mi = 1609 m)
Which curve best illustrates the variation of wave velocity with tension in a vibrating string?
a hypothesis suggests that a woman wearing high-heeled shoes exerts a higher average normal stress on the ground than an elephant
If a rubber ball is dropped from a height of 150cm onto a hard and smooth concrete floor, it will not bounce back to that 150cm height because
conceptually what is are true about the standing waves on a sting vs standing waves in the resonating column
Energy is defined as motion of particles of matter. motion of charges. the rate at which work is done. state change of a substance. the capacity to do work.
with this form of resistance training the person must orient their body to directly oppose the direction of resistance
A high specific heat means Group of answer choices It requires more energy to change temperature. It heats up quickly with energy added.
In the equation , what is I ? Question 16 options: Torque Moment of inertia The control variable Linear momentum Angular momentum
The symbols w and f are both often used to mean frequency, yet they have different meanings
Stars spend roughly what percentage of their lifetimes on the main sequence? Question 2 options: 90% 50% <1%
A bar of metal sitting in the sun will heat up until it reaches the temperature of the surrounding air. F
In Ampere's Law, bds = ui the direction of the integration around the path: a) Must be clockwise
This type of energy depends on how fast something is moving Question 21 options: Potential energy Kinetic energy Magnetic energy
how can the current through a circuit be the same value when the resistor values are different
Which of the following are vectors? Question 19 options: Velocity(m/s) force (N) Acceleration (m/s2) a and b only a, b, and c
Given two vectors a = 3.6i -3.9j and b =6.6i+8.1j what is the magnitude (in m) of the vector a? 5.31 m
: Once the spacecraft is in the vacuum of outer space, for what else would you need rocket thrusters?
A quantity of 3.33 m / s^2 is a measure of Question 14 options: drop metric speed acceleration height velocity
The speed of an airplane doubles in flight. How is the Law of Conservation of Momentum obeyed?
When you take a blood pressure reading, the first sound that you hear (top reading) is the:
Describe the convection current in terms of hte type of electric charges and their directions
The Kinetic Theory of Gases is built on the assumption that gas molecules collide inelastically. False
Is the average speed of the blood 0.90 m/sm/s, greater than 0.90 m/sm/s, or less than 0.90 m/sm/s?
If you place a proton at point A, which direction does the electric force on it point?
One of four behavioral styles often characterized by a direct, no-nonsense approach to people and situations.
Most countries use the ________ temperature scale. Fahrenheit Rankine Newton Kelvin Celsius
what three objects should be used in an experiment to determine the coefficients of friction?
A hair dryer is basically a duct in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. Power consumption of resistors is 1200 W. Air enters a hair dryer at 100 kPa and 22Ā°C and leaves at 47Ā°C with the sameā¦
What kind of quantity is impulse. Question 29 options: Scalar Vector
gas molecules with diffuse from an area of part of pressure to an area of partial pressure
The viscosity of a fluid depends on its temperature. True or false
how would you charge a conductor? Match the words in the
" What physical factors most distinguish the city you come from if any?
The process by which water condensed into a cloud returns to Earth
Question No.16: a.) Deduce Clausius inequality and interpret it. b.) An ideal gas of 0.12 m3 is allowed to expand isentropically from 300 kPa and 120Ā°C to 100 kPa, 5 kJ of heat is then transferred to the gas at constant pressure. Calculate the change in entropy for each process. Assume Ī³=1.4ā¦
A plate from a UAV (unmanned aerial vehicle) of 2.8 Ć 2.5 Ć 0.3 cm made from IM7/8551-7 carbon/ toughened epoxy weighing 2.98 g, failed during testing. After resin digestion, the remaining fibers weighed 1.864 g. The initial densities of the reinforcement and matrix were 1.9 and 1.2 g/cm3,ā¦
The Typhoon aircraft is a highly manoeuvrable, multi-role tactical fighter aircraft As the Typhoon aircraft was being optimized for high combat agility, designers chose a slender cropped delta wing with a leading-edge sweep of 30 deg and a straight trailing edge. A slender delta creates aā¦
At 20Ā°C, apple juice (p = 997.1 kg/m', u = 2.8x103 Pa's) is pumped from an open supply tank through a smooth pipe system to a second tank located at a higher elevation. The pipe has a diameter of 0.035 m and includes 5 standard 90Ā° elbows and 3 fully open gate valves, along a 70-meter-longā¦
Assemble the compliance matrix of the lamina if E3 = 10 GPa, v12 = 0.28 , v23 = 0.6 , v13 = 0.27 , G12 = 7 GPa , G23 = 3 GPa and G31 = 7 GPa.
A ship of 5000 tons displacement floats with a draught of 5 m without pitch and trim. Collision As a result, a compartment of the ship with dimensions l=12 m, b=6 m is injured and 120 tons of water fills inside. The ship's center of gravity before the injury was KG=5.5 m, KM=6.2 m, KB=3.0 m,ā¦
16ā50. The bar remains in contact with the floor and with point A. If point B moves to the right with a constant velocity vB, determine the angular velocity and angular acceleration of the bar as a function of x.
An Airbus A380 needs a flywheel to store 2 MW coming from the left engine. Estimate the tensile stress in the flywheel as a function of the mean radius r, the rotational speed Ļ and the mass density Ļ of the flywheel. Assuming the only available materials are 4340 steel and IM-7 carbon fibersā¦
A pumping system is to deliver 28.3 L/s of water at 15Ā°C. The suction line is 152 mm in diameter in a 91 m long cast iron pipe. The suction inlet is 6 m above the reservoir level. The atmospheric pressure of 101 kPa exists over the reservoir. The required NPSH of the pump is 2 m. Determineā¦
A 60ft3 tank contain helium (M = 4.003) at 250F is evacuated from atmospheric pressure until the vacuum is 28.9 in.Hg. * What is Dalton's Law? * Draw the before and after scenario of the problem and list down the given data as well as unknown data * Calculate the amount of helium that is leftā¦
A 5000 lb truck is being used to lift a 1000 lb boulder B that is on a 200-lb pallet A. Knowing that the truck starts from rest and that the horizontal force between the tires and the ground is 700 lb, determine the velocity of the boulder after the truck has moved forward 6 ft. There is aā¦
a) List FIVE (5) key CAD software tools commonly used in the design and manufacturing of EV battery packs. [5 Marks] b) Explain how parametric modelling in CAD systems helps in designing customizable battery pack configurations. [5 Marks] c) Describe the role of simulation-integrated CAD toolsā¦
This type of problem is commonly known as Couette flow or Poiseuille flow. The flow of a viscous, incompressible Newtonian fluid between two parallel plates can be modeled using the Navier-Stokes equations. We will consider the flow in the x-y plane, either driven by the movement of the upperā¦
For each of the parts, mention the functionality, design considerations, design calcutationcalculations involved, CAD simulation focus, relationship with other parts and manufacture or outsource. Arrange them in a design core chart. a) Engine b) Clutch system c) Gearbox c) chain drive d) Fuel
Company XYZ has three (3) cooler drives, cooling the whole processing machine. What is the mathematical probability and percentage rate (with 2 decimal places) of the processing machine successfully operating (with at least one cooler drive) for 1000 hours. Does the machine pass the 95.00 %ā¦
You are required to perform the Vickers hardness test and generate the hardness report for three sample materials: ā¢ Mild steel ā¢ Aluminium ā¢ Copper The indentation needs to be carried out about 3-5 times for each specimen to get a meaningful result representing the materialās hardness.ā¦
Derive the expression of torque for torsion of non circular shaft
For which solid is the lumped system analysis more likely to be applicable: an actual apple or a golden apple of the same size? Why? (b) What is the basis of the energy balance method? How does it differ from the formal finite difference method? For a specified nodal network, will these twoā¦
The stabilizing gyroscope of a ship has a mass of 50 tonnes, a radius of gyration of 1.525 m, and rotates about a vertical axis at 900 rev/min. Calculate: 1) the time required to attain full speed after starting from rest, if the gyro is supplied with a constant power input of 75 kW 2) theā¦
What is the centroid (x and y) for the following if a = 18 ft., b = 7 ft. and c = 4 ft.?
What is the centroid (both x & y) of the triangle if a = 16 ft., b = 6 ft., and c = 4 ft.
During a freeze-drying process, 2 kg of a pharmaceutical product is frozen and then subjected to sublimation under reduced pressure. If the initial moisture content of the product is 80% and after freeze-drying, the moisture content drops to 5%, calculate the mass of water removed during theā¦
Select the best option regarding the Clark-Fisher Hypothesis (CFH). It: Group of answer choices Precisely predicts the productivity increases facilitated by Artificial Intelligence (AI) and Machine Learning (ML). Forecasts a transition from sectors with higher productivity (e.g., agriculture)ā¦
Consider a body of arbitrary shape. Prove the resultant pressure force is zero.
Identify three methods of primary data collection by which information the company requires could be gathered. Outline yhe strengths and limitations of each approach you suggest
Check all 3 "true" definitions: Dew point temperature is the temperature at which moisture condenses out of the air when it is cooled at constant pressure. Specific air volume is volume of air per mass of air and water moisture mixture. Enthalpy refers to the heat content of the air; heat perā¦
Additive manufacturing makes sense for which situation. Check all that apply. Producing large metal parts for military ground vehicles and larger parts, building advanced nuclear propulsion systems for the US navy submarine programs, using 3D printing as an alternative to traditional castingsā¦
3d drawing for a garden tool holder ,holding a tool of diameter of 12mm that can be mounted on the wall with a length of 500mm.The tool holder to swivel at the front for eas of placing the door and for removing it.
identify and explain three (3) key engineering design or operational principles that would need to be considered separately when designing or operating a water treatment facility that uses surface water compared to groundwater as a source
A load P is applied horizontally while the other end is fixed to a structure. where P = 195 N You have already examined the axial stresses inside the plates. In this problem, the bolted connections will be analyzed. Failure means that the pieces come apart because the bolts cannot hold theā¦
7.15 Explain under what conditions the total rate of heat transfer from an isothermal flat plate of dimensions L X 2L would be the same,
Showing an orbiting space satellite. You are required to design its antenna structure, which should withstand relatively low stresses with reasonable, precise dimensional stability. Which reinforcing fiber system would you recommend in this case? Refer to Appendix A for selected properties ofā¦
a) Explain the principle of the Vickers hardness test and how the hardness number can be obtained from the depth of indentation. [10 marks]
Derive the expression for deflection for a close coiled helical spring. Delta=64WnR^3/Gd^4
A glycerin pump is powered by a 5-kW 100% efficient electric motor. The pressure differential between the outlet and the inlet of the pump at full load is measured to be 230 kPa. If the flow rate through the pump is 15 L/s and the changes in elevation and the flow velocity across the pump areā¦
i. Briefly describe how energy resolution is defined for both EELS and EDS, and state the typical energy resolution values for each technique, based on lecture content.
The primary considerations when selecting a flowmeter are : Group of answer choices cost, size, pressure drop, capacity, accuracy, and reliability. Efficiency, viscosity, strength, noise, tension, and magnetism Weight, temperature, color, diameter, voltage, and flexibility Speed, torque,ā¦
The pinned joint shown here is held by a 1-cm-diameter pin. When the force F is 500 N, what is the average shear stress in the pin? 3.18 MPa 4.71 MPa 6.03 MPa 7.24 MPa
Someone claims that the shear stress at the center of a circular pipe during fully developed laminar flow is zero. Do you agree with this claim? Group of answer choices Yes No
In the hydrodynamic sliding bearing design process,if the calculated minimum oil film thickness hminis too smal or the temperature rise At is too high,what measures could be taken to increase hmin orto reduce At?
After performing most of the flight without incident, the pilot of a home-built ultralight aircraft suddenly notices that the roll control is reversed (i.e. trying to turn left produces a turn to the right). There is no sign of an aerodynamic stall. What could they do to alleviate thisā¦
What is the kinetic-energy correction factor? Why we use this term? Indicate the typical values for different flows.
Handling Incomplete or Inconsistent Data: Explain how you will address any issues regarding missing, inconsistent, or out-of-range data
Particle P is an equilibrium with five forces acting in 3-D space how many scaler equations of equilibrium can be written for point
What is the uncoveted rate of return from the euro zone point view
What does CFD stand for? Question 24Select one: A. Computer Function Dynamics B. Computational Fluid Dynamic C. Construction Flow Development D. Construction Flow Documentation
If you read the book the goal what were some positive and negative impacts Of cutting batch sizes in half?
If the objective was to determine the average value of the material in the bunker, how could this be done by making one measurement?
Using ās option (lowercase s) to print the allocated size of each file, in blocks a. Enter the command to print the allocated size of each files under the dir1 subdirectory. What command do you use?
A physician exercises, a scar and repairs the defect with an advancement skin flap. What should be coded
requirements of direct supervision in as defined in Ā§131.81 of the board rules? D) Ā§1001.407 E) Ā§1001.451 A) Yes B) No
A piston-cylinder expands during a process. Is the boundary work associated with this process into or out of the system?
When analyzing a network, the continuity equation must be equal at each node true or false
The resistance of a fluid to flow is known as its ________________. Question 3 options: Si-content gas content viscosity temperature
find the arc length of a 60Ā° arc with a radius of 3ā²-0" Add the result
Describe the main components of a steam power system and their functions.
Please explain and why dont we use inertia value in there
Choose The best description of airflow in a birds respiratory system
How to describe a level of self efficiency or partially motivated
Scapulas can guide or assist upper trunk rotation. * A. True B. False
(14-8) A small immersion heater is rated at 375 W . Estimate how long it will take to heat up a cup of soup (assume this is 250 mL of water) from \( 15^{\circ} \mathrm{C} \) to \( 75^{\circ} \mathrm{C} \).
(14-7) A water heater can generate \( 32,000 \mathrm{~kJ} / \mathrm{hr} \). How much water can it heat from \( 12^{\circ} \mathrm{C} \) to \( 42^{\circ} \mathrm{C} \) per hour?
(14-1) To what temperature will 8200 J of heat raise 3.0 kg of water that is initially at \( 10.0^{\circ} \mathrm{C} \) ?
10. \( [-/ 2 \) Points \( ] \) DETALLS MYNOTES ASK YOUR TEACHER PRACTICE ANOTHER Neser automobiles Nave fizers that remove fina particist from sahaust pases. This io done by charging the particles and separating them with a strong electric fleld, Consider a postively charped particie +4.5 pCā¦
Parallel-plate capactors are widely used in electronca, such as for preventing direct current leakape. An electric feld is generated between a pair of plates that has a surface charge density of \( 5.90 \times 10^{t} \mathrm{C}^{2} / \mathrm{m}^{2} \). The plates are separated by \( 0.39 \muā¦
Extra Credit-Optional: Choose One (13-13) To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.872 cm in diameter is to be placed in a hole 1.870 cm in diameter in a metal atā¦
(13-14) An ordinary glass is filled to the brim with 450.0 mL of water at \( 100.0^{\circ} \mathrm{C} \). If the temperature of glass and water is decreased to \( 20.0^{\circ} \mathrm{C} \), how much water could be added to the glass?
6. [0/1 Points] DETAILS MYNOTES PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER required to pick sp the tissue paper? \( \square \) 1.46 x Herr ases Newtinity hecond law relate to the electric flaid? yo TUTORIAL Need Help? Luewry
(13-13) To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.872 cm in diameter is to be placed in a hole 1.870 cm in diameter in a metal at \( 22^{\circ} \mathrm{C} \). Toā¦
What is the repulsive force between two pith balls that are 13.5 cm apart and have equal charges of -38.0 nC ? \( \square \) N SUBMIT ANSWER
3. \( [0 / 1 \) Points \( ] \) DETAILS MYNOTES PREVIOUS ANSWERS ASK YOUR TEACHER PRACTICE ANOTHER SerCPNAIT 15.WA.00S: You have a container filled with 22 moles of neutral lithium. How moch negative electric charge is contained in the electrons of all the lithium atoms in the container? 7.1e5ā¦
( \( \mathbf{1 0 \%} \) ) Problem 7: Consider the drawings of charges and electric field lines shown. (a) (c) (e) (b) (d) (f) (a) \% Which of the electric field line drawings are incorrect for point charges? \begin{tabular}{l|l|l|l|l} \( \theta_{\mathrm{g}} \) & \( \theta_{\mathrm{d}} \) & \(ā¦
( \( \mathbf{1 0 \%} \) ) Problem 7: Consider the drawings of charges and electric field lines shown. (a) (c) (e) (b) (d) (f) (a) \% Which of the electric field line drawings are incorrect for point charges? \begin{tabular}{l|l|l|l|l} \( \theta_{\mathrm{g}} \) & \( \theta_{\mathrm{d}} \) & \(ā¦
(13-63) What is the mass of water in a closed room \( 5.0 \mathrm{~m} \times 6.0 \mathrm{~m} \times 4.2 \mathrm{~m} \) when the temperature is \( 25^{\circ} \mathrm{C} \) and the relative humidity is \( 55 \% \) ?
( \( \mathbf{1 0 \%} \) ) Problem 7: Consider the drawings of charges and electric field lines shown. (a) (c) (e) (b) (d) (f) (a) \% Which of the electric field line drawings are incorrect for point charges? \begin{tabular}{l|l|l|l|l} \( \theta_{\mathrm{g}} \) & \( \theta_{\mathrm{d}} \) & \(ā¦
( \( \mathbf{1 0 \%} \) ) Problem 7: Consider the drawings of charges and electric field lines shown. (a) (c) (e) (b) (d) (f) (a) \% Which of the electric field line drawings are incorrect for point charges? \begin{tabular}{l|l|l|l|l} \( \theta_{\mathrm{g}} \) & \( \theta_{\mathrm{d}} \) & \(ā¦
d) Write a thermochemical equation for each of the following processes: (i) The enthalpy of combustion of liquid benzene \( \left(\mathrm{C}_{6} \mathrm{H}_{6}\right) \) is \( -3268 \mathrm{~kJ} / \mathrm{mol} \). (ii) When solid boron reacts with oxygen gas to form one mole of solid diboronā¦
Question 10 10 pts With regards to a pressurized water reactor (PWR), what is the purpose of the thermal shields in the reactor vessel? Guide reactor coolant through the core to minimize thermal transients Protect the reactor core from thermal transients Protect the reactor vessel from thermalā¦
CALCULATOR SETTINGS DAY 1, 08:01 SCORE: 0 / 100 PROGRESS: 19\% HOME THEORY MEDIA Interact with the LabPad to answer the quiz. MISSION Hacker: The cell membrane forms a compartment, or cell, that is separate from the extracellular environment. What is the other main function of the cellā¦
ć ć ć ć CALCULATOR SETTINGS DAY 1, 08:01 SCORE: 0 / 100 PROGRESS: 19\% P. Interact with the LabPad to answer the quiz. HOME THEORY MEDIA MISSION Hacker: The cell membrane forms a compartment, or cell, that is separate from the extracellular environment. What is the other main function of the cellā¦
A block of mass \( m_{1} \) is attached to a massless, ideal string. This string wraps around a massless pulley and then wraps around a second pulley that is attached to a block of mass \( m_{2} \) that is free to slide on a frictionless table. The string is firmly anchored to a wall and theā¦
C. Sort the following into respective groups. Pure gold, Oxygen gas, Water, Rust (iron oxide), Air, Seawater Mixture \( \square \) ii. Compound \( \square \) iii. Element \( \qquad \)
Consider a rod that is 0.400 cm in diameter and 1.80 m long, with a mass of 0.0500 kg . Part A Find the moment of inertia about an axis perpendicular to the rod and passing through its center. Express your answer in kilogram meters squared. \( I= \) \( \square \) \( \mathrm{kg} \cdotā¦
(13-10) A concrete highway is built of slabs 12 m long ( \( 15^{\circ} \mathrm{C} \) ). How wide should the expansion cracks between the slabs be (at \( 15^{\circ} \mathrm{C} \) ) to prevent buckling if the range of temperature is \( -30^{\circ} \mathrm{C} \) to \( +50^{\circ} \mathrm{C} \) ?
\[ \begin{aligned} \frac{1}{\dot{z}_{1}} & =\frac{1}{80+j 60}+\frac{1}{50}+\frac{1}{-j 30} \\ \frac{1}{z_{T h}} & =0.008-j 0.006+0.011+0+j 0.027 \\ & =0.033 \end{aligned} \] \[ \begin{array}{l} \frac{1}{R_{6}}=\frac{1}{5}+\frac{1}{8}+\frac{1}{3}+\frac{1}{6} \quad \frac{1}{Z_{T h}}=0.01ā¦
(13-8) In an alcohol-in-glass thermometer, the alcohol column has length 12.61 cm at \( 0.0^{\circ} \mathrm{C} \) and length 22.79 cm at \( 100.01^{\circ} \mathrm{C} \). What is the temperature if the column has length (a) 18.70 cm (b) 14.60 cm ?
(13-10) A concrete highway is built of slabs 12 m long ( \( 15^{\circ} \mathrm{C} \) ). How wide should the expansion cracks between the slabs be (at \( 15^{\circ} \mathrm{C} \) ) to prevent buckling if the range of temperature is \( -30^{\circ} \mathrm{C} \) to \( +50^{\circ} \mathrm{C} \) ?
ex Learning Apex Learning - Courses com/public/activity/5004002/assessment rtworks | Mag - Elsie Gomez - BOOK... Infinite Fusion Calc. Choppy Orc autospl. Chino 5.4.2 Quiz: Electrical Systems Question 4 of 10 Which of the following safety devices ensures that electricity will flow through itā¦
< Learning Apex Learning - Courses m/public/activity/5004002/assessment works \| Mag.- Elsie Gomez - BOOK... Infinite Fusion Calc... Choppy Orc autospl... 5.4.2 Quiz: Electrical Systems Question 1 of 10 Lightning is more likely to strike a metal tower than a rubber hose because: A. the towerā¦
(13-6) (a) \( 18^{\circ} \) below zero on the Celsius scale is what Fahrenheit temperature? (b) \( 18^{\circ} \) below zero on the Fahrenheit scale is what Celsius temperature?
Learning Apex Learning - Courses om/public/activity/5003004/assessment tworks | Mag... Elsie Gomez - BOOK... Infinite Fusion Calc... Choppy Orc autospl... 5.3.4 Quiz: Scientific Themes Question 1 of 10 All life on Earth is ultimately dependent on what? A. Plants for food B. Rain for water C.ā¦
rning Apex Learning - Courses public/activity/5003002/assessment ks|Mag_ Elsie Gomez - BOOK. Infinite Fusion Calc. Choppy Ore autospl. Girino 5.3.2 Quiz: Calculating with the Periodic Table Question 9 of 10 If an element has three isotopes with known natural abundance percentages, what otherā¦
ivity/5003002/assessment Elsie Gomez - BOOK... Infinite Fusion Calc. Choppy Orc autospl. Chino Hills Hig 2 Quiz: Calculating with the Periodic Table estion 1 of 10 nat does the average atomic mass represent? A. The average of many measurements of the mass of the element B. The best guess ofā¦
7.5 Nonconservative Forces 24. A \( 60.0-\mathrm{kg} \) skier with an initial speed of \( 12.0 \mathrm{~m} / \mathrm{s} \) coasts up a \( 2.50-\mathrm{m} \)-high rise as shown in Figure 7.37 . Find her final speed at the top, given that the coefficient of friction between her skis and the snowā¦
3. Two objects of unequal mass (mass \( \mathrm{M}_{2} \) is greater than mass \( \mathrm{M}_{1} \) ) are hung vertically on a frictionless pulley of negligible mass by a string of fixed length and negligible mass that connects the two masses. \( \mathrm{M}_{1} \) is on a frictionless inclinedā¦
3. Two objects of unequal mass (mass \( \mathrm{M}_{2} \) is greater than mass \( \mathrm{M}_{1} \) ) are hung vertically on a frictionless pulley of negligible mass by a string of fixed length and negligible mass that connects the two masses. \( \mathrm{M}_{1} \) is on a frictionless inclinedā¦
3. Two objects of unequal mass (mass \( \mathrm{M}_{2} \) is greater than mass \( \mathrm{M}_{1} \) ) are hung vertically on a frictionless pulley of negligible mass by a string of fixed length and negligible mass that connects the two masses. \( \mathrm{M}_{1} \) is on a frictionless inclinedā¦
3. Two objects of unequal mass (mass \( \mathrm{M}_{2} \) is greater than mass \( \mathrm{M}_{1} \) ) are hung vertically on a frictionless pulley of negligible mass by a string of fixed length and negligible mass that connects the two masses. \( \mathrm{M}_{1} \) is on a frictionless inclinedā¦
An electron is in a region of space containing a uniform \( 2.95 \times 10^{-5} \mathrm{~T} \) magnetic field. The electron's speed is \( 129 \mathrm{~m} / \mathrm{s} \) and it travels perpendicularly to the field. Under these conditions, the electron undergoes circular motion. What is theā¦
An electron is in a region of space containing a uniform \( 2.95 \times 10^{-5} \mathrm{~T} \) magnetic field. The electron's speed is \( 129 \mathrm{~m} / \mathrm{s} \) and it travels perpendicularly to the field. Under these conditions, the electron undergoes circular motion. What is theā¦
An electron is in a region of space containing a uniform \( 2.95 \times 10^{-5} \mathrm{~T} \) magnetic field. The electron's speed is \( 129 \mathrm{~m} / \mathrm{s} \) and it travels perpendicularly to the field. Under these conditions, the electron undergoes circular motion. What is theā¦
An electron is in a region of space containing a uniform \( 2.95 \times 10^{-5} \mathrm{~T} \) magnetic field. The electron's speed is \( 129 \mathrm{~m} / \mathrm{s} \) and it travels perpendicularly to the field. Under these conditions, the electron undergoes circular motion. What is theā¦
10. A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the \( \mathrm{n}=6 \) excited state. The ion returns to the ground state by emitting FIVE photons ONLY. What is the wavelength of the second highest energy photon? \( \square \) m
10. A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the \( \mathrm{n}=6 \) excited state. The ion returns to the ground state by emitting FIVE photons ONLY. What is the wavelength of the second highest energy photon? \( \square \) m
10. A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the \( \mathrm{n}=6 \) excited state. The ion returns to the ground state by emitting FIVE photons ONLY. What is the wavelength of the second highest energy photon? \( \square \) m
10. A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the \( \mathrm{n}=6 \) excited state. The ion returns to the ground state by emitting FIVE photons ONLY. What is the wavelength of the second highest energy photon? \( \square \) m
3. Based on the Particle Model below, which of the following is a mixture? * D A B C
Desconsiderar o eixo maciƧo circular com um diĆ¢metro de 25 mm em aƧo 1020. E=200GPA determinar o diagrama de forƧa cortante e momento flexor; deformaĆ§Ć£o mĆ”xima
13. Divergence on land forms a \( \qquad \) . a. fault b. mountain range c. plateau 14. The subduction of the Nazca Plate beneath the South American Plate created the \( \qquad \) . a. Marianas Trench (b.) Peru-Chile Trench c. Puerto Rico Trench d. Mid-America Trench 15. The subduction of theā¦
1. An unknown white substance is heated and produced white smoke and black solid. What do you think is this substance?
QUESTION 16 The diagram above shows the masses and velocities of two balls \( P \) and \( Q \) moving along a straight line \( X Y \) in the directions shown. The objects collide and stick together, after collision.
pex Learning Aper Learning - Courses com/public/activity/4005002/assessment artnorks|Mag. Elsie Gomez - Book. Infinite Fusion Calc. Choppy Creationat. 4.5.2 Test (CST): Computer-Scored Unit Test Question 5 of 25 What information does a net ionic equation give? A. It lists only the aqueousā¦
What is the magnitude of the momentum of a 27 g sparrow flying with a speed of \( 7.3 \mathrm{~m} / \mathrm{s} \) ? Express your answer using two significant figures. \[ p=\square+0 \text { : } \square \mathrm{kg} \cdot \mathrm{~m} / \mathrm{s} \] Request Answer Submit
A box weighing 81.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. (Figure 1) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 30.0 N . Express your answerā¦
Part A A 80.0 kg firefighter climbs a flight of stairs 30.0 m highļ¼ How much work is requiredļ¼ Express your answer to three significant figures and include the appropriate unitsļ¼ \[ \begin{array}{l} \text { Rāæ“ååhature } n+0 \text { ? } \\ W=\text { Value Units } \end{array} \] Submit Requestā¦
Part A A \( 8700-\mathrm{kg} \) boxcar traveling at \( 14 \mathrm{~m} / \mathrm{s} \) strikes a second boxcar at rest. The two stick together and move off with a speed of \( 5.0 \mathrm{~m} / \mathrm{s} \). What is the mass of the second car? Express your answer to two significant figures andā¦
A novice skier, starting from rest, slides down an icy frictionless \( 12^{\circ} \) incline whose vertical height is 135 m . How fast is she going when she reaches the bottom? Express your answer to two significant figures and include the appropriate units. \[ \begin{array}{l} \square \squareā¦
An atomic nucleus initially moving at \( 340 \mathrm{~m} / \mathrm{s} \) emits an alpha particle in the direction of its velocity, and the remaining nucleus slows to \( 265 \mathrm{~m} / \mathrm{s} \). Part A If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222ā¦
This clamp is being used to press together two wood blocks with a force of 200 N. Determine the load at Pin C.
Express your answer to two significantion of the initial velocity and Part A What average force is requir negative value if the direction of the force is in the direction opposite to the initial velocity. \( F= \) \( \square \) Value Units Submit Request Answer Provide Feedback
What force is needed to accelerate a sled (total mass \( =60 \mathrm{~kg} \) ) at \( 1.8 \mathrm{~m} / \mathrm{s}^{2} \) on horizontal frictionless ice? Express your answer to two significant figures and include the appropriate units. \[ F=\begin{array}{|l|l|} \hline \text { Value Units } &ā¦
\( \qquad \) 17 pts 1750113358.553375 Download 1750113379.443049 Downiload 1750113377ļ¼413744ļ¼ Download 1750113375.431371. Download 1750113373ļ¼1628618ļ¼ Grades 4.5 monic noinalital Graded Anonymouslyļ¼n Hanners ×¢āæ»äø·ęØ Jushsļ¼ 1 at farthe Zermetina Janobriļ¼Jaced Mass 100 \( +\inftyā¦
Part A A golf ball of mass 0.045 kg is hit off the tee at a speed of \( 33 \mathrm{~m} / \mathrm{s} \). The golf club was in contact with the ball for \( 3.50 \times 10^{-3} \mathrm{~s} \). Find the impulse imparted to the golf ball. Express your answer to two significant figures and includeā¦
Consider four charges placed at the corners of a rectangle as shown. At the center of the rectangle (point C) the electric field is directed... to the right to the left to the top of the screen to the bottom of the screen none of these
Consider four charges placed at the corners of a rectangle as shown. At the center of the rectangle (point C) the electric field is directed... to the right to the left to the top of the screen to the bottom of the screen none of these
Consider four charges placed at the corners of a rectangle as shown. At the center of the rectangle (point C) the electric field is directed... to the right to the left to the top of the screen to the bottom of the screen none of these
Consider four charges placed at the corners of a rectangle as shown. At the center of the rectangle (point C) the electric field is directed... to the right to the left to the top of the screen to the bottom of the screen none of these
Compute and plot the response of a sound system subjected to a force of magnitude 23 N , driving frequency of twice the natural frequency and initial conditions given by \( x_{0}=0 \mathrm{~m} \) and \( v_{0}=0.2 \mathrm{~m} / \mathrm{s} \). The mass of the system is 10 kg and the springā¦
If you perform a \( 1: 2 \) dilution on a 100 -milligram per liter solution, what is the final concentration? 1. \( 300 \mathrm{mg} / \mathrm{L} \) 2. \( 50 \mathrm{mg} / \mathrm{L} \) 3. \( 33 \mathrm{mg} / \mathrm{L} \) 4. \( 200 \mathrm{mg} / \mathrm{L} \)
If you perform a \( 1: 2 \) dilution on a 100 -milligram per liter solution, what is the final concentration? 1. \( 300 \mathrm{mg} / \mathrm{L} \) 2. \( 50 \mathrm{mg} / \mathrm{L} \) 3. \( 33 \mathrm{mg} / \mathrm{L} \) 4. \( 200 \mathrm{mg} / \mathrm{L} \)
15. What is a milligram? 1. \( 1,000 \mathrm{~kg} \) 2. \( 1 / 1,000,000 \mathrm{~kg} \) 3. \( 1,000,000 \mathrm{~g} \) 4. \( 1 / 1,000 \mathrm{~kg} \)
9. How many grams of dry sodium bicarbonate (baking soda) must you add to 1.5 liters of water to make a 250 milligram per liter solution?
9. How many grams of dry sodium bicarbonate (baking soda) must you add to 1.5 liters of water to make a 250 milligram per liter solution? 1. 0.375 g 2. 0.500 g 3. 0.250 g 4. 0.175 g
1. A BOD test was performed using a 300 -milliliter \( (\mathrm{mL}) \) bottle. Given the following measurements, calculate the \( \mathrm{BOD}_{5} \) in milligrams per liter ( \( \mathrm{mg} / \mathrm{L} \) ). Dissolved oxygen on Day \( 0=8.1 \mathrm{mg} / \mathrm{L} \) Dissolved oxygen on Dayā¦
If an irregularly shaped apple possesses a density of \( 0.96 \mathrm{~g} / \mathrm{cm}^{3} \), what is its mass in milligrams? (The volume of the given cylinders are in mL ).
A ball is thrown verically upward then comes straight back down. If the air resistance is negligible 1.) during the balls flight up, is the velocity positive, negative, or zero? Explain 2.) during the balls flight up, is the acceleration positive, negative, or zero? Explain
A coal fired electric plant in the Ohio river valley was one of the most efficient heat engines ever built. Its Carnot efficiency was 42%. Given this fact, what can we say about its actual operating efficiency?
Newton's second law states that the force exerted by a spring is directly proportional to the distance the spring is stretched or compressed, as long as the spring is not stretched or compressed beyond its elastic limit. Question 26 options: TrueFalse
A coil is rotated in a magnetic field about an axis perpendicular to the field. During each rotation, how many times does the flux through the coil equal zero? Group of answer choices more than 4 0 2 4 1
Ignoring air resistance, an object that has been falling from an airplane toward the surface of the Earth has an acceleration that is Question 28 options: accelerating constant equal to the 1/100 times the square of the inverse of gravity. decelerating
As a main sequence star transitions into a red giant, its core can be said to _______ and _______, whereas the envelope of the star will ________ and _______. Question 3 options: contract; heat; expand; cool expand; cool; contract; heat expand; heat; expand; cool
Suppose you hold a ping pong ball 2ft above a basketball such that their centers are NOT on the same vertical line. If you drop the ping pong ball onto the basketball, after collision, it bounces off side-wise and does not come toward your hand. This collision is called
What conditions must be constant in order to assume the specific heat is constant? Question 2 options: Relatively small temperature changes during a process Need the exact solution over a large temperature range Somewhat larger temperature changes with an average specific heat
When using the tips-to-tail method to find the sum of two vectors, you place the tail of vector B at the tip of vector A and the resultant vector will then extend from the tail of A to the tip of B. Question 34 options: TrueFalse
A cube has an edge length of 5 cmcm . Part A If it is divided up into 1-cmcm cubes, how many 1-cmcm cubes would there be?
Vector subtraction F1-F2 can be considered as a special vector addition namely suppose that the cases of vector addition 1 and 2 in this experiment were cector subtraction f1-f2
When using an OBJECT for a visual aid, what is the best tip? Group of answer choices Bring an object for everyone in the audience to hold Pass the object around Practice with your object beforehand Show the object for 30 seconds only
Newton is the SI unit of force. One Newton is equal to Question 7 options: 1 kgm/s2 1 m/s 1 kgm/s 1 kg/s
Bonnie sits on the outer rim of a merry-go-round, and Klyde sits midway between the center and the rim. The merry-go-round makes one complete revolution every two seconds. Who has the larger angular velocity ?
The speedometer on a car tells you the vehicle's Question 12 options: weight / distance instantaneous speed rate of change in velocity acceleration velocity average speed average velocity
a circle is a special ellipse one with both focu at the same point. the eccentricity of a circle is zero the value of an orbit may run from 0 to almost one
Once the rockets fire initially, why do they keep going until the spacecraft leaves the atmosphere? Why not just give an initial push to get it off the ground?
A baseball player bats a ball with a force of 1000 N. The force that the ball exerts against the bat is Group of answer choices A. less than 1000 N. B. more than 1000 N. C. 1000 N. D. impossible to determine.
when the proton is at location A, what is the direction of the proton's momentum ?
According to the law conservation of linear momentum the total momentum of the system of particles before collision is equal to total momentum after collision. Question 37 options: TrueFalse
Suppose you start at the origin, move along the x-axis a distance of 9 units in the positive direction, and then move downward a distance of 5 units. What are the coordinates of your position? (x, y, z)
what is the strength of the linear relationship between footlength and height for Ginas friends
When an object rotates, the number of rotations or revolutions per unit of time is called Question 12 options: Rotational Speed Tangential speed Centripetal speed
Note that the electric field strength between the plates is determined by the dielectric constant of the material between the plates.
standing wave is formed as a result of Group of answer choices Resonance Constructive and destructive interferences Coherence Phase matching
Considering Betelgeuse and Eta Carina, which of the following is TRUE? Question 17 options: Only Betelgeuse will go supernova Only Eta Carina will go supernova. Both will go supernova.
A person standing in front of a screen as shown red and green lights are turned on and create the shadows as shown what color is on the screen indicated by five what color is shadow eight
When floating, which force is greater: gravitational force (weight) or buoyant force? Defend your answer using Newtonās laws.
The mass of a newborn baby's brain has been found to increase by about 1.6 mgmg per minute. How long does it take for the brain's mass to increase by 0.0080 kgkg ?
You are driving your car down the freeway at an average speed of 62.45 miles per hour. How many kilometers can you travel if you drive nonstop for 78.7 minutes? (1 mi = 1609 m)
Which curve best illustrates the variation of wave velocity with tension in a vibrating string?
a hypothesis suggests that a woman wearing high-heeled shoes exerts a higher average normal stress on the ground than an elephant
If a rubber ball is dropped from a height of 150cm onto a hard and smooth concrete floor, it will not bounce back to that 150cm height because
conceptually what is are true about the standing waves on a sting vs standing waves in the resonating column
Energy is defined as motion of particles of matter. motion of charges. the rate at which work is done. state change of a substance. the capacity to do work.
with this form of resistance training the person must orient their body to directly oppose the direction of resistance
A high specific heat means Group of answer choices It requires more energy to change temperature. It heats up quickly with energy added.
In the equation , what is I ? Question 16 options: Torque Moment of inertia The control variable Linear momentum Angular momentum
The symbols w and f are both often used to mean frequency, yet they have different meanings
Stars spend roughly what percentage of their lifetimes on the main sequence? Question 2 options: 90% 50% <1%
A bar of metal sitting in the sun will heat up until it reaches the temperature of the surrounding air. F
In Ampere's Law, bds = ui the direction of the integration around the path: a) Must be clockwise
This type of energy depends on how fast something is moving Question 21 options: Potential energy Kinetic energy Magnetic energy
how can the current through a circuit be the same value when the resistor values are different
Which of the following are vectors? Question 19 options: Velocity(m/s) force (N) Acceleration (m/s2) a and b only a, b, and c
Given two vectors a = 3.6i -3.9j and b =6.6i+8.1j what is the magnitude (in m) of the vector a? 5.31 m
: Once the spacecraft is in the vacuum of outer space, for what else would you need rocket thrusters?
A quantity of 3.33 m / s^2 is a measure of Question 14 options: drop metric speed acceleration height velocity
The speed of an airplane doubles in flight. How is the Law of Conservation of Momentum obeyed?
When you take a blood pressure reading, the first sound that you hear (top reading) is the:
Describe the convection current in terms of hte type of electric charges and their directions
The Kinetic Theory of Gases is built on the assumption that gas molecules collide inelastically. False
Is the average speed of the blood 0.90 m/sm/s, greater than 0.90 m/sm/s, or less than 0.90 m/sm/s?
If you place a proton at point A, which direction does the electric force on it point?
One of four behavioral styles often characterized by a direct, no-nonsense approach to people and situations.
Most countries use the ________ temperature scale. Fahrenheit Rankine Newton Kelvin Celsius
what three objects should be used in an experiment to determine the coefficients of friction?
A hair dryer is basically a duct in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. Power consumption of resistors is 1200 W. Air enters a hair dryer at 100 kPa and 22Ā°C and leaves at 47Ā°C with the sameā¦
What kind of quantity is impulse. Question 29 options: Scalar Vector
gas molecules with diffuse from an area of part of pressure to an area of partial pressure
The viscosity of a fluid depends on its temperature. True or false
how would you charge a conductor? Match the words in the
" What physical factors most distinguish the city you come from if any?
The process by which water condensed into a cloud returns to Earth
Question No.16: a.) Deduce Clausius inequality and interpret it. b.) An ideal gas of 0.12 m3 is allowed to expand isentropically from 300 kPa and 120Ā°C to 100 kPa, 5 kJ of heat is then transferred to the gas at constant pressure. Calculate the change in entropy for each process. Assume Ī³=1.4ā¦
A plate from a UAV (unmanned aerial vehicle) of 2.8 Ć 2.5 Ć 0.3 cm made from IM7/8551-7 carbon/ toughened epoxy weighing 2.98 g, failed during testing. After resin digestion, the remaining fibers weighed 1.864 g. The initial densities of the reinforcement and matrix were 1.9 and 1.2 g/cm3,ā¦
The Typhoon aircraft is a highly manoeuvrable, multi-role tactical fighter aircraft As the Typhoon aircraft was being optimized for high combat agility, designers chose a slender cropped delta wing with a leading-edge sweep of 30 deg and a straight trailing edge. A slender delta creates aā¦
At 20Ā°C, apple juice (p = 997.1 kg/m', u = 2.8x103 Pa's) is pumped from an open supply tank through a smooth pipe system to a second tank located at a higher elevation. The pipe has a diameter of 0.035 m and includes 5 standard 90Ā° elbows and 3 fully open gate valves, along a 70-meter-longā¦
Assemble the compliance matrix of the lamina if E3 = 10 GPa, v12 = 0.28 , v23 = 0.6 , v13 = 0.27 , G12 = 7 GPa , G23 = 3 GPa and G31 = 7 GPa.
A ship of 5000 tons displacement floats with a draught of 5 m without pitch and trim. Collision As a result, a compartment of the ship with dimensions l=12 m, b=6 m is injured and 120 tons of water fills inside. The ship's center of gravity before the injury was KG=5.5 m, KM=6.2 m, KB=3.0 m,ā¦
16ā50. The bar remains in contact with the floor and with point A. If point B moves to the right with a constant velocity vB, determine the angular velocity and angular acceleration of the bar as a function of x.
An Airbus A380 needs a flywheel to store 2 MW coming from the left engine. Estimate the tensile stress in the flywheel as a function of the mean radius r, the rotational speed Ļ and the mass density Ļ of the flywheel. Assuming the only available materials are 4340 steel and IM-7 carbon fibersā¦
A pumping system is to deliver 28.3 L/s of water at 15Ā°C. The suction line is 152 mm in diameter in a 91 m long cast iron pipe. The suction inlet is 6 m above the reservoir level. The atmospheric pressure of 101 kPa exists over the reservoir. The required NPSH of the pump is 2 m. Determineā¦
A 60ft3 tank contain helium (M = 4.003) at 250F is evacuated from atmospheric pressure until the vacuum is 28.9 in.Hg. * What is Dalton's Law? * Draw the before and after scenario of the problem and list down the given data as well as unknown data * Calculate the amount of helium that is leftā¦
A 5000 lb truck is being used to lift a 1000 lb boulder B that is on a 200-lb pallet A. Knowing that the truck starts from rest and that the horizontal force between the tires and the ground is 700 lb, determine the velocity of the boulder after the truck has moved forward 6 ft. There is aā¦
a) List FIVE (5) key CAD software tools commonly used in the design and manufacturing of EV battery packs. [5 Marks] b) Explain how parametric modelling in CAD systems helps in designing customizable battery pack configurations. [5 Marks] c) Describe the role of simulation-integrated CAD toolsā¦
This type of problem is commonly known as Couette flow or Poiseuille flow. The flow of a viscous, incompressible Newtonian fluid between two parallel plates can be modeled using the Navier-Stokes equations. We will consider the flow in the x-y plane, either driven by the movement of the upperā¦
For each of the parts, mention the functionality, design considerations, design calcutationcalculations involved, CAD simulation focus, relationship with other parts and manufacture or outsource. Arrange them in a design core chart. a) Engine b) Clutch system c) Gearbox c) chain drive d) Fuel
Company XYZ has three (3) cooler drives, cooling the whole processing machine. What is the mathematical probability and percentage rate (with 2 decimal places) of the processing machine successfully operating (with at least one cooler drive) for 1000 hours. Does the machine pass the 95.00 %ā¦
You are required to perform the Vickers hardness test and generate the hardness report for three sample materials: ā¢ Mild steel ā¢ Aluminium ā¢ Copper The indentation needs to be carried out about 3-5 times for each specimen to get a meaningful result representing the materialās hardness.ā¦
Derive the expression of torque for torsion of non circular shaft
For which solid is the lumped system analysis more likely to be applicable: an actual apple or a golden apple of the same size? Why? (b) What is the basis of the energy balance method? How does it differ from the formal finite difference method? For a specified nodal network, will these twoā¦
The stabilizing gyroscope of a ship has a mass of 50 tonnes, a radius of gyration of 1.525 m, and rotates about a vertical axis at 900 rev/min. Calculate: 1) the time required to attain full speed after starting from rest, if the gyro is supplied with a constant power input of 75 kW 2) theā¦
What is the centroid (x and y) for the following if a = 18 ft., b = 7 ft. and c = 4 ft.?
What is the centroid (both x & y) of the triangle if a = 16 ft., b = 6 ft., and c = 4 ft.
During a freeze-drying process, 2 kg of a pharmaceutical product is frozen and then subjected to sublimation under reduced pressure. If the initial moisture content of the product is 80% and after freeze-drying, the moisture content drops to 5%, calculate the mass of water removed during theā¦
Select the best option regarding the Clark-Fisher Hypothesis (CFH). It: Group of answer choices Precisely predicts the productivity increases facilitated by Artificial Intelligence (AI) and Machine Learning (ML). Forecasts a transition from sectors with higher productivity (e.g., agriculture)ā¦
Consider a body of arbitrary shape. Prove the resultant pressure force is zero.
Identify three methods of primary data collection by which information the company requires could be gathered. Outline yhe strengths and limitations of each approach you suggest
Check all 3 "true" definitions: Dew point temperature is the temperature at which moisture condenses out of the air when it is cooled at constant pressure. Specific air volume is volume of air per mass of air and water moisture mixture. Enthalpy refers to the heat content of the air; heat perā¦
Additive manufacturing makes sense for which situation. Check all that apply. Producing large metal parts for military ground vehicles and larger parts, building advanced nuclear propulsion systems for the US navy submarine programs, using 3D printing as an alternative to traditional castingsā¦
3d drawing for a garden tool holder ,holding a tool of diameter of 12mm that can be mounted on the wall with a length of 500mm.The tool holder to swivel at the front for eas of placing the door and for removing it.
identify and explain three (3) key engineering design or operational principles that would need to be considered separately when designing or operating a water treatment facility that uses surface water compared to groundwater as a source
A load P is applied horizontally while the other end is fixed to a structure. where P = 195 N You have already examined the axial stresses inside the plates. In this problem, the bolted connections will be analyzed. Failure means that the pieces come apart because the bolts cannot hold theā¦
7.15 Explain under what conditions the total rate of heat transfer from an isothermal flat plate of dimensions L X 2L would be the same,
Showing an orbiting space satellite. You are required to design its antenna structure, which should withstand relatively low stresses with reasonable, precise dimensional stability. Which reinforcing fiber system would you recommend in this case? Refer to Appendix A for selected properties ofā¦
a) Explain the principle of the Vickers hardness test and how the hardness number can be obtained from the depth of indentation. [10 marks]
Derive the expression for deflection for a close coiled helical spring. Delta=64WnR^3/Gd^4
A glycerin pump is powered by a 5-kW 100% efficient electric motor. The pressure differential between the outlet and the inlet of the pump at full load is measured to be 230 kPa. If the flow rate through the pump is 15 L/s and the changes in elevation and the flow velocity across the pump areā¦
i. Briefly describe how energy resolution is defined for both EELS and EDS, and state the typical energy resolution values for each technique, based on lecture content.
The primary considerations when selecting a flowmeter are : Group of answer choices cost, size, pressure drop, capacity, accuracy, and reliability. Efficiency, viscosity, strength, noise, tension, and magnetism Weight, temperature, color, diameter, voltage, and flexibility Speed, torque,ā¦
The pinned joint shown here is held by a 1-cm-diameter pin. When the force F is 500 N, what is the average shear stress in the pin? 3.18 MPa 4.71 MPa 6.03 MPa 7.24 MPa
Someone claims that the shear stress at the center of a circular pipe during fully developed laminar flow is zero. Do you agree with this claim? Group of answer choices Yes No
In the hydrodynamic sliding bearing design process,if the calculated minimum oil film thickness hminis too smal or the temperature rise At is too high,what measures could be taken to increase hmin orto reduce At?
After performing most of the flight without incident, the pilot of a home-built ultralight aircraft suddenly notices that the roll control is reversed (i.e. trying to turn left produces a turn to the right). There is no sign of an aerodynamic stall. What could they do to alleviate thisā¦
What is the kinetic-energy correction factor? Why we use this term? Indicate the typical values for different flows.
Handling Incomplete or Inconsistent Data: Explain how you will address any issues regarding missing, inconsistent, or out-of-range data
Particle P is an equilibrium with five forces acting in 3-D space how many scaler equations of equilibrium can be written for point
What is the uncoveted rate of return from the euro zone point view
What does CFD stand for? Question 24Select one: A. Computer Function Dynamics B. Computational Fluid Dynamic C. Construction Flow Development D. Construction Flow Documentation
If you read the book the goal what were some positive and negative impacts Of cutting batch sizes in half?
If the objective was to determine the average value of the material in the bunker, how could this be done by making one measurement?
Using ās option (lowercase s) to print the allocated size of each file, in blocks a. Enter the command to print the allocated size of each files under the dir1 subdirectory. What command do you use?
A physician exercises, a scar and repairs the defect with an advancement skin flap. What should be coded
requirements of direct supervision in as defined in Ā§131.81 of the board rules? D) Ā§1001.407 E) Ā§1001.451 A) Yes B) No
A piston-cylinder expands during a process. Is the boundary work associated with this process into or out of the system?
When analyzing a network, the continuity equation must be equal at each node true or false
The resistance of a fluid to flow is known as its ________________. Question 3 options: Si-content gas content viscosity temperature
find the arc length of a 60Ā° arc with a radius of 3ā²-0" Add the result
Describe the main components of a steam power system and their functions.
Please explain and why dont we use inertia value in there
Choose The best description of airflow in a birds respiratory system
How to describe a level of self efficiency or partially motivated
Scapulas can guide or assist upper trunk rotation. * A. True B. False
Desconsiderar o eixo maciƧo circular com um diĆ¢metro de 25 mm em aƧo 1020. E=200GPA determinar o diagrama de forƧa cortante e momento flexor; deformaĆ§Ć£o mĆ”xima
This clamp is being used to press together two wood blocks with a force of 200 N. Determine the load at Pin C.
1
2
3
4
5