I want to ask....(20marks)Quick 要式

2008-04-17 2:28 am

IF the mass of 10cmcube of water is 10 times of that of polystyrene foam with the same volume , what is the ratio of their densities?

回答 (1)

2008-04-17 2:53 am

✔ 最佳答案

density = mass/volume
since the volume is constant,
density is directly proportional to the mass
ratio of density of water to density of foam
=10 : 1

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