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A neutron star has a mass of 2.0 1030 kg (about the mass of oursun) and a radius of 4.8 103 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 ithad fallen a distance of 0.018 m? (Assume that the gravitational forceis constant over the distance of the fall, and that the star is notrotating.)

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