What is the gauge pressure (in psi) at a depth of 144 ft. in the ocean (salt wat

Question

What is the gauge pressure (in psi) at a depth of 144 ft. in the ocean (salt water)? Note: The rule of thumb that gauge pressure = 0.433h is only applicable to fresh water. Answer What is the gauge pressure (in psi) at a depth of 144 ft. in the ocean (salt water)? Note: The rule of thumb that gauge pressure = 0.433h is only applicable to fresh water. What is the gauge pressure (in psi) at a depth of 144 ft. in the ocean (salt water)? Note: The rule of thumb that gauge pressure = 0.433h is only applicable to fresh water.

Explanation / Answer

density of sea water = 1025 kg/m^3

height = 144 ft = 43.8912 meters

so gauge pressure = density * g * height = 1025 * 9.8 * 43.8912 =

= 440,887.104 Pa = 440,887.104 * 0.000145037738 psi = 63.945 psi

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