John weighs 779 N, and Marcia weighs 521 N. Estimate the gravitational force between them when they are 0.53 m apart.
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M = 779/9.8 = 79.5 kg
m = 521/9.8 = 53.2 kg
Fg = GMm/d² = 1.0035E-6 N
m = 521/9.8 = 53.2 kg
Fg = GMm/d² = 1.0035E-6 N