A hospital patient is being fed intravenously with a liquid of density 1060 kg/m3. The container of liquid is raised 1.27 m above the patient’s arm where the fluid enters his veins. What is the pressure this fluid exerts on his veins, expressed in millimeters of mercury? Use g=9.8ms2 and 1mmHg=133.3Pa.
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.
A hospital patient is being fed intravenously with a liquid of density 1060 kg/m3. The container of liquid is raised 1.27 m above the patient’s arm where the fluid enters his veins. What is the pressure this fluid exerts on his veins, expressed in millimeters of mercury? Use g=9.8ms2 and 1mmHg=133.3Pa.
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