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Two spheres are placed so that their centers are 2.9 m apart. The force between the two spheres is 2.60 multiplied by 10-12 N. What is the mass of each sphere if one sphere is twice the mass of the other sphere?

  • physics -

    Use the universal law of gravity.

    F = G*M1*M2/R^2

    If M1 is the heavier mass,

    F = 2G*M1^2/R^2 = 2*10^-12 N

    R = 2.9 m

    Look up G and solve for M1

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