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Physics

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If a small planet were located 7 times as far as the Earth's distance from the Sun, it period is ___ earth years?

  • Physics -

    Use Kepler's third law.
    (Period,y)^2/(Distance,a.u.)^3 = 1
    (for objects orbiting the sun)
    The distance is 7 a.u in this case.

    (Period,y)^2 = 7^3 = 343
    Period = 18.5 years

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