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Find the change in weight percentage of ...

Find the change in weight percentage of a body when it is taken from equator to poles. Polar radius is 6357 km and equitorial radius is 6378 km.

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MBD -HARYANA BOARD-GRAVITATION-Example
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  18. Why does an object float or sink when placed on the surface of water?

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  19. Why do you feel lighter when you swim?

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