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Astronomers discover an exoplanet, a planet obriting a star other than the Sun, that has an...

Astronomers discover an exoplanet, a planet obriting a star other than the Sun, that has an orbital period of 3.57 Earth years in a circular orbit around its star, which has a measured mass of 3.69×1030 kg . Find the radius of the exoplanet's orbit.

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Answer #1

The gravitational force for the planet by the star provides the centripetal force for revolution. We use this to find the required radius of orbit as shown below.***********************************************************************************************
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