1. What happens to the force of gravitation if: (a) Masses of the bodies are doubled keeping the distance between them constant. (b) Distances between the bodies are halved keeping masses constant. (c) Masses are doubled and distance between them is halved. 2. Moon has no atmosphere. Why?

1. What happens to the force of gravitation if: (a) Masses of the bo

1.	1. What happens to the force of gravitation if: (a) Masses of the bodies are doubled keeping the distance between them constant. (b) Distances between the bodies are halved keeping masses constant. (c) Masses are doubled and distance between them is halved. 2. Moon has no atmosphere. Why?
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1. What happens to the force of gravitation if: (a) Masses of the bodies are doubled keeping the distance between them constant. (b) Distances between the bodies are halved keeping masses constant. (c) Masses are doubled and distance between them is halved. 2. Moon has no atmosphere. Why?

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