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A sled and rider with a combined weight of 59 kg are at rest on the top of a hill 10 m high.
(a) What is their total energy at the top of the hill?
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(b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?
A certain hydrolic system is designed to exert a force 108 times as large as the one put onto it. What must be the ratio of their diamerters
A moving particle encounters an external electric field that decreases its kinetic energy from 9910 eV to 6840 eV as the particle moves from position A to position B.
To avoid hitting a pedestrian, a car driver slams on her brakes and comes to a complete stop after skidding 16 m. find the speed of the car when the brakes were applied
A block of mass 2.1 kg, which has an initial velocity of 5.3m/s at time t = 0, slides on a horizontal surface. Determine the distance that the block slides as it comes to rest
In the vertical case the maximum tension in the string is 18.0% larger than the tension that exists when the circle is horizontal. Identify the speed of the stone.
You are assigned an experament to find g by dropping a 5 cm styrophoam sphere. Construct an uncertainty budget for this hypothetical situtation
rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 44.1m/s^2. Find the maximum height ymax reached by the rocket
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. what is the net rate of energy radiated from the sphere?
A pendulum bob of mass m is released from a height H above the lowest point. Find the heights to which the bobs rise given that the collision is
An initially neutral conductor contains a hollow cavity in which there is a -100 nC point charge. what is the charge on the inner wall of the cavity wall
Two objects are charged and their centers are separated by 31.6 cm. Object A is charged to 61 nC and object B is charged to 54 nC. What is the magnitude of the electrostatic force between them.
q1. one of the most powerful cranes in the world operates in switzerland. it can slowly raise a load of m 5000 tonnes
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