Wolfgang is still scuba diving in High Rock Lake and now records a pressure of 2

Question

Wolfgang is still scuba diving in High Rock Lake and now records a pressure of 20.6 psi. At what depth is Wolfgang swimming?

26.7 ft

52.0 ft

47.5 ft

The pressure of an enclosed gas is 38.0 psi above atmospheric pressure (this is called gauge pressure). To what height will this lift a column of water?

9.09 ft

87.7 ft

92.4 ft

26.7 ft

52.0 ft

47.5 ft

The pressure of an enclosed gas is 38.0 psi above atmospheric pressure (this is called gauge pressure). To what height will this lift a column of water?

9.09 ft

87.7 ft

92.4 ft

Explanation / Answer

P' = 20.6 psi = 142032 Pa = Patm + P
P = 41031 pa = (rho)gh = 1000*9.8*h
h = 4.186 m = 13.733 ft

262001 pa = 1000*9.8*h
h = 26.734m = 87.7099738 ft

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