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15-12-2022
Physics

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a point-like test mass m is placed at the center of a spherical planet of uniform density, mass m and radius r. 1. calculate the energy required to remove this test mass to an infinite distance from the planet. 2. calculate the gravitational binding energy of this planet (without the test mass), i.e. the energy required to break the planet up into infinitesimal pieces separated by an infinite distance from each other.

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