The atmospheric pressure is around 76 cm of Mercury (Mercury has a density of about 13,600 Kg/m^ ^ 3) . If the atmospheric pressure was measured using height of water (density of 1000 kg/m^ ^ 3) , the height would be smaller than 76 cm larger than 76 cm The same (76 cm) cannot tell A woman with a mass m = 76Kg is wearing high heels . Each shoe has a surface area of 38.2 cm^ ^ 2 . How much pressure is exerted on the ground by the high heels ?
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.
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