1. Suppose you have an Oort cloud comet on an orbit with pericenter distance 10,000 AU, and apocenter distance 20,000 AU. a.  What are the semi-major axis and eccentricity of the orbit? b.  What are the specific energy (energy per unit mass), and specific angular momentum (angular momentum per unit mass) of the comet? c.  How fast is the comet moving at apocenter (relative to t

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