how much joule of work is performed by a machine of power 40 watt in 1 whole 1 by 2 hour answer is 2160000 joule class 9 numerical problems
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216000J
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how much joule of work is performed by a machine of power 40 watt in 1 whole 1 by 2 hour answer is 2160000 joule class 9 numerical problems
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