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April 23, 2014

Homework Help: physics

Posted by shine on Wednesday, December 12, 2012 at 5:50pm.

A neutron star has a mass of 1.27 1030 kg (about the mass of our sun) and a radius of 6.47 103 m. 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 0.0086 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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