Physics

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Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth

  • Physics -

    F = G m M/R^2
    F/m = local g = G M/R^2

    F/m earth = G Me/Re^2

    F/m saturn = G 95Me/81Re^2 = (95/81) G Me/Re^2
    so 95/81 times that on earth

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