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Suppose that you could pack neutrons (mass = 1.67 × 10-27 kg) inside a tennis ball (radius = 0.032 m) in the same way as neutrons and protons are packed together in the nucleus of an atom.
(a) Approximately how many neutrons would fit inside the tennis ball?
(b) A small object is placed 2.0 m from the center of the neutron- packed tennis ball, and the tennis ball exerts a gravitational force on it. When the object is released, what is the magnitude of the acceleration that it experiences? Ignore the gravitational force exerted on the object by the earth. |
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