For numbers 12 and 13, refer to the problem below. Water flows at a rate of 0.25 m3/min in a horizontal pipe of varying cross-sectional areas. Calculate the velocity of the water at a section where the radius of the pipe is (12) 0.06 m and (13) at a section where the radius is 9.0 cm. 12. a. 0.38 m/s b. 0.55 m/s c. 1.32 m/s d. 2.36 m/s 13. a. 0.55 m/s b. 0.25 m/s c. 0.17 m/s d. 0.02 m/s
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.
For numbers 12 and 13, refer to the problem below.
Water flows at a rate of 0.25 m3/min in a horizontal pipe of varying
cross-sectional areas. Calculate the velocity of the water at a section where
the radius of the pipe is (12) 0.06 m and (13) at a section where the radius
is 9.0 cm.
12. a. 0.38 m/s b. 0.55 m/s c. 1.32 m/s d. 2.36 m/s
13. a. 0.55 m/s b. 0.25 m/s c. 0.17 m/s d. 0.02 m/s
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