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In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.
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Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
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The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot
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Or stars in the main sequence, which color of stars tend to have higher absolute brightness? white...
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