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What do we mean by the main-sequence turnoff point of a star cluster, and what does it tell us?.
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Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley
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Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
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What do we mean by the main-sequence turnoff point of a star cluster, and what does it tell us?....
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