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A rectangular box with open top floats on a surface of aswimming pool. During a rainstorm, box fills with waterpartially and floats 5 cm lower in the water. The box has sides oflength 10 cm and 20 cm, and 10 cm deep. Density of 250kg m^-3.

What mass of the water that has collected in the box?

The following day during a second rainstorm the box completelyfills with water. Does it float or sink? Why does it do this?

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