Energy conservation principles
If R = 12 cm, M = 530 g, and m = 40 g (below), find the speed of the block after it has descended 50 cm starting from rest. Solve the problem using energy conservation principles. (Treat the pulley as a uniform disk.)
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A coin is placed 12.0 {rm cm} from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 30.0 {rm rpm} (revolutions per minute) is reached,
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Calculate the time required for the stone to reach its maximum height. Calculate the maximum height of the stone above the edge of the cliff.
The power rating of a resistor is the maximum power it can safely dissipate without getting too hot. Suppose you have a set of 5.30 Omega, 10.8 Omega, and 20.1 Omega resistors, all rated at 2.40 W. If you connect these three resistors in series ac
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Motion with a constant, nonzero acceleration is not uncommon in the world around us. Falling (or thrown) objects and cars starting and stopping approximate this type of motion. It is also the type of motion most frequently involved in introductory
A 62 kg astronaut floating at rest in space outside a space capsule throws his 0.50 kg hammer such that it moves with a speed of 5 m/s relative to the capsule. What is the astronaut's speed?
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