Question

A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device deliver air to the diver? (density of sea water= 1030kg/m^3;atmospheric pressure= 1.013x10^5 pa)

Answer 1

p= ρ•g•h + p (atm) =1000•9.8•20 + 101325 =2.97•10^5 Pa,