The distance between the midponts of two metal balls.P and Q,respectively of masses 55 kg and 70 kg is 80 cm
calculate the gravitational force that P exerts on Q7
(b)give only the magnitude of the force that Q exerts on P
(c)if Q Is now replaced by a ball that 1/2 its original mass and the distance between the balls is doubled.determine the New force.
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