Questions:
1.
A 24 g ball has a volume 96 cm3. What fraction of it
is out of the water when it floats?
2.
A cube of wood 10 cm on a side has a mass 0.5 kg. How hard must
you push to hold it entirely under water?
3.
The specific gravity of iron is about 7.9. How much lighter does
a mass of iron seem to be when it is under water than when it is
in the air?
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