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A person drops a cylindrical steel bar (Y = 2.00 × 1011 Pa) from a height of 3.30 m (distance between the floor and the bottom of the vertically oriented bar). The bar, of length L = 0.89 m, radius R = 0.0065 m, and mass m = 1.90 kg, hits the floor and bounces up, maintaining its vertical orientation. Assuming the collision with the floor is elastic, and that no rotation occurs, what is the maximum compression of the bar?
It takes a student t = 7.6 s to push a block m = 11 kg at a constant velocity over a distance of d = 8.2 m. Write an expression for the energy required to move the block along this path in terms of the variables provided
A heart defibrillator passes 11.5 A through a patient's torso for 5.00 ms in an attempt to restore normal beating. How much charge passed
A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential acceleration of 19.6 m/s2as the fan comes up to speed
Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
You have determine that it takes 3s for a toy car ti travel through the distance of 162 cm. Calculate the average speed of the toy car
How far away does the ball strike the ground?
A 1.05-kg bucket is tied to a rope of negligible mass that is wrapped around a pole mounted horizontally on frictionless bearings. When the bucket is released from rest
A solenoid 88.0 cm long has a radius of 2.60 cm and a winding of 2000 turns; it carries a current of 3.60 A. Calculate the magnetic field outside the solenoid
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. The aluminum is 3 mm thick.
An engineer has designed a machine to produce electricity by using the difference in the temperature of ocean water at different depths. what is the maximum efficiency of this machine
An ordinary workshop grindstone has a radius of 7.50 cm and rotates at 6000 rpm. What is the linear speed of a point on its edge
A 455pF capacitor is charged to 155V and then quickly connected to a 255mH inductor. Determine the peak value of the current
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