Amerry-go-round can be modeled as a solid disk of radius r and mass m. initially, it is rotating on a sturdy frictionless axle with angular velocity ω0 . a rock of mass m is dropped vertically onto the merry-go-round and it sticks to the surface at a radius r from the center. what is the final angular velocity ω of the merry-goround + rock system?
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How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?
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Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?
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If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10
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Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant
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Amerry-go-round can be modeled as a solid disk of radius r and mass m. initially, it is rotating on...
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