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The pressure on a skin diver who has descended to a depth of 30 ft in fresh water is how many psi?

Select one:
A. 0 psi
B. 0.0361 psi
C. 26 psi
D. 30 psi
E. 52 psi
F. 13 psi

Answer :

The pressure on the skin diver at a depth of 30 ft in fresh water is approximately 26 psi.

The pressure on a skin diver who has descended to a depth of 30 ft in fresh water can be calculated using the formula P = ρgh,

where P is the pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the depth.

In this case, since the diver is in fresh water, we can use the density of fresh water, which is approximately 62.4 lb/ft^3.

The acceleration due to gravity is approximately 32.2 ft/s^2.

Substituting these values into the formula, we get P = (62.4 lb/ft^3) * (32.2 ft/s^2) * (30 ft).

Find the pressure in psi (pounds per square inch), we need to convert the units. 1 lb/ft^2 is equal to 0.00694 psi.

So, the pressure on the skin diver at a depth of 30 ft in fresh water is approximately (62.4 lb/ft^3) * (32.2 ft/s^2) * (30 ft) * (0.00694 psi/lb/ft^2).

Simplifying the calculation, the pressure is approximately 26 psi.

Therefore, the correct answer is 26.

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