There is a planet X that has a mass that is 24 times that of the earth and 4 times the earth's raidus. It orbits a star Y at a distance of 12 AU. (1 AU is the earth sun distance). Star Y has a mass 3 times that of our sun. What is the orbital period of Planet X in years? If an person has an earth weight of 140 lbs, what is it's weight on the surface of plane

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