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Math Ratios

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Force of attraction between two spheres is 3.75 x 10?-5 dyne when the spheres are placed 18 cm apart. What is force of attraction when placed 52 cm apartÉ

  • Math Ratios - ,

    Force is inversely proportional to square of distance between bodies, hence F/3.75x10^-5=18^2/52^2
    F=(18^2x3.75x10^-5)/52^2
    =0.46x10^-5 dynes

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