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a car travels with speed v1 for the first half of the journey time during the second half of the journey time it traveled with a speed of v2 for the half of the distance and with a speed of v3 for remaining journey distance find the average speed. |
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Answer» Explanation: In classical theories of GRAVITATION, the changes in a gravitational field propagate. A CHANGE in the distribution of energy and momentum of matter RESULTS in subsequent alteration, at a DISTANCE, of the gravitational field which it PRODUCES. |
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