Question

Breathing in deeply changes the volume of your body. At a spa, a woman stands on a scale completely submerged in a liquid of specific gravity 0.973. The scale reads 20.4 N with her lungs full of air, and 54.6 N with her lungs empty. Assume the weight of the air in her lungs is negligible compared to her body weight. Find the volume of air she inhales, in cm3.

Answer 1

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