Consider a horizontal pipe of cross section A1 through which water flows. Later on, the pipe radius is reduced to one third of its initial value, as shown in the attached figure. a) At what rate does the velocity of the water change in the narrow section? argue your response b) If the pressure of the water in the wide section is 202.6 kPa, A1 = 9 cm?, and it is known that the flow fills a 0.9-liter container in 1.00 s, determine the pressure of the water (in kPa) in the wide section. narrow. Consider that the density of water is p= 1000 kg/m?.
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.
Consider a horizontal pipe of cross section A1 through which water flows. Later on, the pipe radius is reduced to one third of its initial value, as shown in the attached figure.
a) At what rate does the velocity of the water change in the narrow section? argue your
response
b) If the pressure of the water in the wide section is 202.6 kPa, A1 = 9 cm?, and it is known that the flow fills a 0.9-liter container in 1.00 s, determine the pressure of the water (in kPa) in the wide section. narrow. Consider that the density of water is p= 1000 kg/m?.
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