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The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
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When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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The partide in Figure B has a negative charge, and its velocity vector lies in the x-y
plane and ma...
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