An iron ball with a volume of 10cm * 3 is put into mercury. How buoyant is it at rest? Density: iron 7.9g/cm * 3, mercury 13.6g/cm * 3
Because the density of iron is less than that of mercury
So the iron ball will float
F floating = g iron = 7.9 * 10 / 1000 * 10 = 0.79n
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