The maximum depth dmax that a diver can snorkel is set by the density of the water and the fact that human lungs can func-tion 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 * 10^3 kg/m3)?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
The maximum depth dmax that a diver can snorkel is set
by the density of the water and the fact that human lungs can func-tion 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 * 10^3 kg/m3)?
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