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QUESTION
Suppose a planet with three times the mass of Earth is orbiting a star that has three times the mass of the sun at an average orbital radius that is...
Suppose a planet with three times the mass of Earth is orbiting a star that has three times the mass of the sun at an average orbital radius that is three times larger than Earths orbital radius. How big is the gravitational force that the star exerts on the planet compared to the gravitational force that exerts on the earth?
