An open-tube mercury manometer is used to measure the pressure in an oxygen tank. The atmospheric pressure is 1020 mbarmbar . 1 barbar = 105105 N/m2N/m2. The density of mercury is 13.6×103kg/m313.6×103kg/m3. part a) Determine the absolute pressure (in PaPa) in the tank if the height of the mercury in the open tube is 21.5 cmcm higher than the mercury in the tube connected to the tank. part b)Determine the absolute pressure (in PaPa) in the tank if the height of the mercury in the open tube is 8.6 cmcm lower than the mercury in the tube connected to the tank.
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.
1) An open-tube mercury manometer is used to measure the pressure in an oxygen tank. The atmospheric pressure is 1020 mbarmbar . 1 barbar = 105105 N/m2N/m2. The density of mercury is 13.6×103kg/m313.6×103kg/m3.
part a) Determine the absolute pressure (in PaPa) in the tank if the height of the mercury in the open tube is 21.5 cmcm higher than the mercury in the tube connected to the tank.
part b)Determine the absolute pressure (in PaPa) in the tank if the height of the mercury in the open tube is 8.6 cmcm lower than the mercury in the tube connected to the tank.
2)The radius of the aorta is about 1.0 cmcm , and the blood passing through it has a speed of about 40 cm/scm/s .
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