An astronaut stands upright inside a capsule on the moon's surface. What is the difference between the blood pressure at the lower part of his anterior tibial artery and the average blood pressure in his heart, that derives from the height difference of 1.30 m shown in the illustration? Take the density of blood to be 1060 kg/m3 and the acceleration due to gravity on the moon to be 1.62 m/s2. ressure = P, Aorta 1.35 m Anterior tibial artery essure P 8140 N/m2 6360 N/m2 2320 N/m2 2230 N/m2 O 7110 N/m2
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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