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A certain man has a mass of 79 kg and a density of 991 kg/m3 (excluding...

A certain man has a mass of 79 kg and a density of 991 kg/m3 (excluding the air in his lungs).

Calculate his volume in cubic meters.

Find the buoyant force, in newtons, that air exerts on him. Use 1.29 kg/m3 for the density of air.

What is the ratio of the buoyant force to his weight?

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