Question

At 47'/14.2m of seawater, the atmospheric pressure is _____, the hydrostatic pressure is _____, the gauge pressure is _____, and the absolute pressure is _____.

1) 14.7 psi, 1.42atm, 1.42atm, 1.42ata
2) 1atm, 2.42atm, 3.42atm, 4.32ata
3) 1atm, 1.42atm, 1.42atm, 2.42ata
4) The answer cannot be determined from the information provided.

Answer 1

At 47 feet of seawater, the atmospheric pressure is 1 atm, hydrostatic pressure is 1.42 atm, gauge pressure is 1.42 atm, and the absolute pressure is 2.42 ata.

Step-by-step explanation:

At 47 feet/14.2 meters of seawater, the atmospheric pressure is 1 atm, the hydrostatic pressure is 1.42 atm, the gauge pressure is 1.42 atm, and the absolute pressure is 2.42 ata. This is due to the fact that hydrostatic pressure is caused by the weight of the water above a particular point, and at the depth of 14.2 meters, this pressure is 1.42 atm. To get the absolute pressure (Pabs), we add the atmospheric pressure (1 atm) to the gauge pressure (1.42 atm), giving us 2.42 ata.