The orbit of aLS10kg comet around the Sun is elliptical, with an aphelion distance of 28.0 AU and perihelon distance of 0BS AU. ENote: 1 AU-ane astronomical un the average distance trom the Sun to the Earth 1496 10 m) (a) What is ts orbital eccentricity? (b) What is s period? (Enter your answer in yr.) yr () At aphelion what is the potential energy (in ) of the comet-Sun system
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