Asked by Yasin

Astronomers determine masses of distant objects by observing their smaller companions. For example, they can measure the period of a planet orbiting around a distant star, measure the radius of its circular orbit, and then employ Newtonian physics to determine the mass of the star. Callisto is one of the Jupiter's moons. Its period of revolution is 16.7days, and the radius of its circular trajectory is . What is Jupiter's mass in 1.9*10^6kg?

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Answered by Elena
T=2πsqrt(R³/GM)
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