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03-16-2008, 09:23 PM
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| Physics Gravitational Force? A neutron star has a mass of 2.0 1030 kg (about the mass of our sun) and a radius of 5.0 103 m (about the height of a good-sized mountain). Suppose an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of 0.020 m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)      |
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