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A comet of mass 1.20 ✕ 1010 kg moves in an elliptical orbit around the Sun....

A comet of mass 1.20 ✕ 1010 kg moves in an elliptical orbit around the Sun. Its distance from the Sun ranges between 0.200 AU and 62.0 AU. (Note: 1 AU = one astronomical unit = the average distance from the Sun to Earth = 1.496 ✕ 1011 m.)

(a) What is the eccentricity of its orbit?

(b) What is its period? ______yr


(c) At aphelion what is the potential energy of the comet-Sun system? _____J

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