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| 1. |
ntThe gravitational potential energy of a body at a distance r from the centre of the earth is U. It's weight at a distance 2r from the centre of the earth in terms of U is ?n |
| Answer» ntThe gravitational potential energy of a body at a distance r from the centre of the earth is U. It's weight at a distance 2r from the centre of the earth in terms of U is ?n | |