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fbsthreads
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i read that a stretched spring weighs more than a coiled spring becuase energy increase weight (e=mc2)
so, does warm water weigh more than cool water? assuming of course it is equal volume and none of the warm water has evaporated?
does it weigh more becuase it was more energy?
so, does warm water weigh more than cool water? assuming of course it is equal volume and none of the warm water has evaporated?
does it weigh more becuase it was more energy?