Answers edited by njolee
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Question #b1ba6
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What is the difference between momentum(m×v) and kinetic energy (12mv2)of an object?
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A model train, with a mass of 4kg, is moving on a circular track with a radius of 8m. If the train's rate of revolution changes from 16Hz to 12Hz, by how much will the centripetal force applied by the tracks change by?
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Will computer programming ever be a subject?
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Question #5bc76
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Question #2052e