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1. Iron has a specific gravity of 7.8. Find the apparent weight of a solid sphere made from 100 kg of pure iron, when

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1. Iron has a specific gravity of 7.8. Find the apparent weight of a solid sphere made from 100 kg of pure iron, when weighed under water. Density of water is 1000 kg/m3. 2. What is the absolute pressure in a depth of 32 m in seawater? Density of seawater is 1025 kg/m3. What is the gauge pressure there?

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