Average strain in the spike
A 26.0 kg hammer strikes a steel spike 2.90 cm in diameter while moving with speed of 20.0 m/s. The hammer rebounds with speed 10.0 m/s after 0.110 s. What is the average strain in the spike during the impact?
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On an airless moon, you drop a golf ball of mass 106g out of a skyscraper window. After it has fallen 125 meters, it is moving at 19.0 m/s. What is the rate of freefall acceleration on this moon?
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Prove that if G is an undirected bipartite graph with an odd number of vertices, then G is nonhamiltonian.
A roller coaster has a vertical loop with radius 27.6 m. With what minimum speed should the roller coaster car be moving at the top of the loop so that the passengers do not lose contact with the seats?
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The best preventive measures against hardware theft and vandalism are common sense and a constant awareness of the risk.
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