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What is unusual about the results of mass determinations of clusters of galaxies?
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Acompound machine is also called a machine. a. force b. simple c. complex d. directional
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What is a subatomic particle with a negative charge and very little mass?
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In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.
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What is unusual about the results of mass determinations of clusters of galaxies?...
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