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A cube of copper with each edge having the dimension 12.7 mm, is put in a vise and squeezed by a force of 215 N exerted by either side of the vise.
(a) What is the stress in the copper cube?
(b) What is the strain in the copper cube?
(c) By how much does the side of the copper cube decrease?
(d) How would your answers change for a smaller copper cube that has half the edge length of 6:35 mm?
A 25,000-kg subway train initially traveling at 10.5 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 67.0 m long by 18.5 m wide by 12.5 m high.
A simple 1.3m long pendulum oscillates at a location where g=9.81. How many complete oscillations does it make in 4.00min
A car accelerates from rest to a speed of 19.0m/s in 6.00 seconds. If the car weighs 16000N, what average power must the motor produce to cause this acceleration
light of wavelength 550 nm of air is found to travel at 1.96 x 10^8 m/s in a certain liquid. what is the frequency of the light in air
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. How long (s) is he in the air
A playground merry-go-round of radius R = 2 m has a moment of inertia I = 275 kg•m2 and is rotating at 14 rev/min about a frictionless vertical axle.
A car travels due east with a speed of 44.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. Find the velocity of the rain
A ball of radius 37 cm is rolling down an inclined plane with no slipping. What is the balls angular acceleration at the bottom of the inclined plane
Consider an old-fashion bicycle with a small wheel of radius 0.25 m and a large wheel of radius 0.86 m. Find the total distance traveled by the rider
A 7.1-kg block of aluminum is heated from 30°C to 60°C at atmospheric pressure. Find the work done by the aluminum
A small turtle moves at a speed of 165 furlongs per fortnight. Find out the speed of the turtle in centimeters per second. Note that 1 furlong = 220 yards and 1 fortnight = 14 days.
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