A planet orbits a star in a year of length 210 x 107 s in a, Ask an Expert

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A planet orbits a star, in a year of length 2.10 x 107 s, in a nearly circular orbit of radius 1.31 x 1011 m. With respect to the star, determine

(a) the angular speed of the planet,

(b) the tangential speed of the planet, and

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