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63. Problem 15.13E (HRW) The human lungs can operate against a pressure differential
of up to about
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of an
atmosphere. If a diver uses a snorkel for breathing, we have to find how far
below water level can he or she swim.|
Solution: Click For PDF Version Human lungs can operate against a pressure differential of up to about one-twentieth of atmospheric pressure.
Gauge pressure of water below a depth of h m is
Equating the pressure at depth h to
That is one can swim up to a depth of 0.52 m by using a snorkel.
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.
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we get