What pressure is caused by 12 inches of water in a water column at the bottom?

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The pressure exerted by a water column is determined using the formula that relates height and density of the fluid. Specifically, the pressure at a certain depth is calculated by multiplying the height of the water column by the density of water and the gravitational acceleration, and then dividing by a specific constant to convert to psi.

In this case, 12 inches of water is equivalent to 1 foot (since there are 12 inches in a foot). The pressure exerted by a 1-foot column of water can be calculated as follows:

  1. The weight of 1 cubic foot of water is approximately 62.4 pounds.

  2. Therefore, the pressure exerted by a 1-foot column of water can be expressed as:

  • Pressure (psi) = Height (feet) × 62.4 pounds (weight of water) ÷ 144 square inches (area of 1 square foot)

  • Pressure (psi) = 1 foot × 62.4 / 144 = approximately 0.434 psi.

This calculation is based on the fact that 1 foot of water generates about 0.4335 psi, which is rounded to 0.434 psi for practical purposes. This aligns with standard hydraulic principles

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