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質量是指含有多少物質,所以質量是不變的.重量是由於物體受到重力作用產生的,其根本原因是萬有引力.由於天體質量不同,所以同一質量的重量也不相同.根據萬有引力,重量不僅跟物體的質量有關,還跟天體的質量(如果物體在…
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