What is the pressure at the bottom of a water tank that has a cross section of 10 ft2 and is filled with water to a depth of 40 ft?
A) (40 ft × 10 ft2)/0.433 = 924 psi (rounded) B) 40 ft × 0.433 lb/ft = 17 psi (rounded)
C) 40 ft × 0.433 lb/ft × 10 ft2 = 170 psi (rounded) D) (40 ft × 0.433 lb/ft)/10 ft2 = 1.7 psi (rounded)
B
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