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What is the kinetic energy of a ball that has a mass of 3 kg and is moving at 5 m/s?
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Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:
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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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In a system, when potential energy decreases, then entropy also decreases. true false
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Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.
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What is the kinetic energy of a ball that has a mass of 3 kg and is moving at 5 m/s?...
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