If a water tank is 100 feet high, what is the pressure coming out of the tank?

The pressure of water at a certain height can be calculated using the hydrostatic pressure formula, which states that the pressure in pounds per square inch (PSI) increases by approximately 0.433 PSI for every foot of water height. To find the pressure at a height of 100 feet, you would multiply the height by the pressure per foot.

The calculation is as follows:

Pressure (PSI) = Height (feet) × 0.433 PSI/foot

So, for a 100-foot high tank:

Pressure = 100 feet × 0.433 PSI/foot = 43.3 PSI

This means the pressure of the water coming out of the tank would indeed be approximately 43.33 PSI, making this the correct answer. Understanding this concept is crucial for water operators, as it is fundamental for systems that rely on gravitational pressure to distribute water effectively.