Question A particle moves in a spherically symmetric force field with potential energy given by U(r) = “ k/r. Calculate the Hamiltonian function in spherical coordina
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Question A thin, uniform rod with negligible mass and length 0.200 m is attached to the floor by a frictionless hinge at point P (Fig). A horizontal spring with force c
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Question
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Question A 15,000-N crane pivots around a friction-free axle at its base and is supported by a cable making a 25° angle with the crane (Fig. 11.29). The crane is 16 m
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Question A bookcase weighing 1500 N rests on a horizontal surface for which the coefficient of static friction is p = 0.40. The bookcase is 1.80 m tall and 2.00 m wide;
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Question A non-uniform beam 4.50 m long and weighing 1.00 kN makes an angle of 25.0° below the horizontal. It is held in position by a frictionless pivot at its upper
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Question A non-uniform fire escape ladder is 6.0 m long when extended to the icy alley below. It is held at the top by a frictionless pivnt, and there is negligible fri
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Question A Truck on a Drawbridge A loaded cement mixer drives onto an old drawbridge, where it stalls with its center of gravity three-quarters of the way across the sp
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Question Mountain Climbing Mountaineers often use a rope to lower themselves down the face of a cliff (this is called rappelling). They do this with their body nearly h
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Question Two friends are carrying a 200-kg crate up a flight of stairs. The crate is 1.25 m long and 0.500 m high, and its center of gravity is at its center. The stair
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