Question

a) What is the gauge pressure of water at a depth of 38.7 m?

kPa

b) What is the actual pressure of water at this depth?

kPa


what formulas do i use and how do i do this?

Answer 1

a) gauge pressure = (water density, kg/m^3)x(depth, meters)x(acceleration of gravity, m/s^2)
The answer will be in Pascals

b) add atmospheric pressure to the gauge pressure