What is the gravitational potential energy

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Two basketballs sit side by side and are touching. The mass of each basketball is 0.619 kg and its radius is 11.5 cm.

(a) What is the gravitational potential energy of the two-ball system? answer in J

(b) What is the minimum work required to increase their separation so that their centers are 60 cm apart? answer in J

Reference no: EM131547496

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