Question

(a) A 5.3 kg particle and a 2.1 kg particle have a gravitationalattraction with a magnitude of 2.9 multiplied by 10-12 N. What isthe gravitational potential energy of the two-particlesystem?
_____ J

(b) If you triple the separation between the particles, how muchwork is done by the gravitational force between theparticles?
_____J

(c) How much work is done by you?
_____J

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