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The orbit of a 1.5 ✕ 1010 kg comet around the Sun is elliptical, with an aphelion distance of 33.0 AU and...

The orbit of a 1.5 ✕ 1010 kg comet around the Sun is elliptical, with an aphelion distance of 33.0 AU and perihelion distance of 0.850 AU. (Note: 1 AU = one astronomical unit = the average distance from the Sun to the Earth = 1.496 ✕ 1011 m.)


(a)What is its orbital eccentricity?


(b)What is its period? (Enter your answer in yr.)


(c)At aphelion what is the potential energy (in J) of the comet—Sun system?

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