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Physics, 12.03.2020 02:10 katepotter2019
Astronomers have discovered a new planet called "Xandar" beyond the orbit of Pluto (No, not really but I need a fake planet for this problem!). It has a satellite called "Jim" that orbits with a period of 12.9 days at a distance of 72,600 km. What is the mass of "Xandar"?
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