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Uranus makes one complete orbit of the Sun every 83.8 years. Calculate the radius of the orbit of Uranus. Hint: It is a very good approximation to assume this orbit is circular.

  • Physics -

    Try G*Ms*Mu/R^2 = Mu*Vu^2/R
    here Ms = mass of Sun
    Mu = mass of Uranus
    Vu = Speed of Uranus
    R =Orbital radius
    Also 2*pi*R = Vu*T will give value of Vu which when plugged in the first equation will give R.

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