Water has its maximum density of 1g/cm3 or 1000kg/m3 at 4∘C. When the temperature changes from either greater or less than 4 degrees, the density will become less than 1g/cm3. Water has the maximum density of 1g/cm3 only when it is pure water.
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Find the lifting force of a 4 kg cork lifebelt in sea water if the densities of cork and sea water are 0.2×103kg/m3 and 1.03×103kg/m3 respectively.
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Q2
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Q3
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