A venturi tube is a tube with a constriction in it. Pressure ina venturi tube can be measured by attaching a U-shaped fluid-filleddevice to the venturi tube as shown in the figure above.The densityof air is 1.20 kg/m3 and the density of water is 1000kg/m3. Use g = 10 m/s2.
(a) If the fluid in the U is water, and there is a 10.0 cmdifference between the water levels on the two sides, what is themagnitude of the pressure difference between points 1 and 2 in theventuri tube? (Pa)
(b) The venturi tube has air flowing through it. If thecross-sectional area of the venturi tube is 2 times larger at point 1 than it is atpoint 2, what is the air speed at point 2? (m/s)
