# physics

An iron cube floats in a bowl of liquid mercury at 0 C.
a) If the temperature is raised to 28 C, will the cube float higher or lower in the mercury?
b)By what percent will the fraction of volume submerged change?

Thanks

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1. You need the density of iron, mercury, at each temperature, or have the coefficent of volume expansion and then figure the density at the second temp.

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posted by bobpursley

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