Solve the below problem:
Q: The maximum depth dmax that a diver can snorkel is set by the density of the water and the fact that human lungs can function against a maximum pressure difference (between inside and outside the chest cavity) of 0.050 atm. what is the difference in dmax for fresh water and the water of the Dead Sea (the saltiest natural water in the world, with a density of 1.5 x 103 kg/m3)?