Physics

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On October 15, 2001, a planet was discovered orbiting around the star x. Its orbital distance was measured to be 10.5 million kilometers from the center of the star, and its orbital period was estimated at 6.3 days.

a. What is the mass of x?
b. Express your answer in terms of our sun's mass.

  • Physics -

    t^2=4(3.14)^2r^3
    _________________
    GM

    M=2.3*10^30kg

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