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You decide to drop a bar made of a steel cylinder (Y = 6.0 × 1010 Pa) from a height of 1.20 m (distance between the floor and the bottom of the vertically oriented bar). The bar, of length L = 0.90 m, radius R = 0.0055 m, and mass m = 0.80 kg, hits the ground and bounces up, but manages to stay perfectly vertical. If you assume that its collision is perfectly elastic, and that there is no rotation, what is the maximum compression of the bar?
Consider on an inclined air track, the inclined angle is 2 degrees. If in our experiment, find the distance d between the two photogates
suppose a sample of 1 mole of a diatomic ideal gas at 1 atm and 20 degrees C is ADIABATICALLY expanded to 5 times its original volume. how much work did the gas do on the environment
To store the energy produced in 1hour by a 110 electric power plant, how many cubic meters of water will have to be pumped from the lower to the upper reservoir? Suppose the upper reservoir is 510 meters above the lower one, and we can neglect the sm..
Water flowing in a horizontal pipe is at a pressure of 1.55 105 Pa at a point where its cross-sectional area is 6.00 m2. Find the water's speed in the wider pipe
At launch, the space shuttle's engines offer a thrust of 29 x 10^6N, and it accelerates upward at 1.75 m/s^2. What is the shuttle's mass.
In an ultra-low-temperature experiment, a collection of atoms enter a special state called a Bose-Einstein condensate, What is the speed of light in this condensate
A 55.5-kg ice skater is moving at 4.08 m/s when she grabs the loose end of a rope, Determine the force exerted by the horizontal rope on her arms
A 2.50m long pipe closed at one end, Find the number of the harmonic corresponding to this frequency
A 2.80 kg gold bar at 98 degrees celcius is dropped into 0.34 kg of water at 23 degree celcius. what is the final temperature? assume the specific heatof gold is 129 J/kg
A parallel-plate capacitor has plates with an area of 395 cm2 and an air-filled gap between the plates that is 2.29 mm thick. How much energy is stored in the capacitor
Direction of the surface winds What is the expected composition
A skateboarder, starting from rest, rolls down a 12.5 m ramp. When she arrives at the bottom of the ramp her speed is 6.10 m/s. Determine the magnitude of her acceleration
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