A diver is 57.5 ft under the surface of a lake (p=1000 kg/m3). What are the absolute and gage pressures at that depth? Answer in both English and SI units.
h = 57.5 ft = 17.526 m
gauge pressure
Pg = h * rho * g = 17.526* 1000* 9.8
Pg = 1.718* 10^5 Pa (SI unit)
Pg = 24.917 psi ( English unit)
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absolute pressure
Pa = Patm + Pg
Pa = 1.013 * 10^5 + 1.718* 10^5
Pa = 2.73* 10^5 Pa (SI units)
Pa = 39.595 psi (English unit)
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