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An object in motion stays in motion, in a , unless acted on by an external force.
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An observer that stands still as the electron moves by him, will observe
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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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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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An object in motion stays in motion, in a , unless acted on by an external force....
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