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A person drops a cylindrical steel bar (Y = 1.700 × 1011 Pa) from a height of 2.70 m (distance between the floor and the bottom of the vertically oriented bar).
The bar, of length L = 0.870 m, radius R = 0.00650 m, and mass m = 0.600 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?
a satellite would have a mass of 200 kg on the surface of the moon. determine the weight of the satellite in pounds
Find the strength of the magnetic field that causes a torque of 2.09 × 10-5 N·m to act on the loop when a current of 0.00361 A flows in it
A contact lens is made up of a material with index of refraction 1.6. What must the radius of curvature of the outer (convex) surface be in order for the lens to have a focal length of 50 cm
A 5 turn loop of wire with a radius of 4cm moves toward a 0.15T magnetic field in a 3 second time interval. What is the average emf induced in the loop? If the loop has a resistance of 5 ohm, what current is generated?
A 42.0-kg boy, riding a 1.50-kg skateboard at a velocity of 5.50m/s across a level sidewalk, jumps forward to leap over a wall.Just after leaving contact with the board, the boy's velocityrelative to the sidewalk is 6.00 m/s, 8.30° above thehorizo..
a rubber ball dropped from a height of 2 bounces back to a height of 1. draw the balls position and velocity graphs
The angular momentum of a flywheel having a rotational inertia of 0.140 kg m2 about its axis decreases from 3.40 to 0.90 kg m2/s in 2.20 s. What is the average power of the flywheel
A motorist drives along a straight road at a constant speed of 22.0 m/s. Just as she passes a parked motorcycle police officer, Find the speed of the officer as he overtakes the motorist
an object with mass m 6.5 kg is moving with a constant velocity along the y axis v08.4 ms. suddenly a force along the x
When jumping, a flea reaches a takeoff speed of 1.0m/s over a distance of 0.48mm. how high would he go
A head-butter can accelerate himself from rest to head-butting speed of 8.5 m/s, At the moment of impact, what impulse does the head butter produce
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
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