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國二理化,請詳解

Sep 23rd 2013, 11:19

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假設挖去的小洞體積是V 那麼挖去的質量是8.9V 公克灌進小洞裡水銀的質量是 13.6V 公克整個銅塊會增加141公克所以說(-8.9V)+(13.6V)=141 4.7V=141 挖去的體積V=30 而他要問填入多少水銀所以答案<sep/>...

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