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a) A 75.0-kg man floats in freshwater with 3.00% of his volume above water when his...

a) A 75.0-kg man floats in freshwater with 3.00% of his volume above water when his lungs are empty, and 5.00% of his volume above water when his lungs are full. Calculate the volume of air he inhales {called his lung capacity} in liters.

b) Does this lung volume seem reasonable?

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