In a "Venturi tube" or "Venturi flow meter" a fluid passes through a wide and a narrow region. The different flow speeds cause a pressure difference, which is seen in the height difference of the heavier fluid in the U-shaped section (no flow occurs in the U- shaped part). Air (1.2 kg/m) passes through the Venturi tube, and the heavier liquid in the U-shaped part is water (1000 kg/m³). The Venturi tube is made of 1-inch and ½-inch PVC pipe, with inside diameters of 1.049 and 0.622 inches, respectively. What is the speed of the air passing through the wide (larger diameter) part of the Venturi tube? Venturi Tube

19. The radius of the bronchial tube is decreased by a factor of 4. The velocity of gas through it initially is 1 m/s. What is the velocity in the section of bronchial tube with decreased radius in m/s?

A chamber is filled with a gas that has a pressure of 0.250 atm and ???is connected to a mercury-filled u-tube with a width of 0.01m. The left side of the tube is closed and there is a vacuum at the top of the tube. How much higher is the mercury on the left-hand side compared to the right-hand side?

At the surface of a freshwater lake, the pressure is 105 kPa. What is the approximate pressure decrease in going 42.6 m above the surface? Air at 20°C has density of 1.20 kg/m3.          in kPa What is the approximate pressure decrease in going 42.6 m above the surface? Air at 20°C has density of 1.20 kg/m3.           In pa

A simple thermometer is formed by taking a large spherical container of volume 1.13m³ and filling it with an ideal gas. Then, a U-shaped tube is attached that is very narrow so that very little fluid/gas can fit inside the tube. The tube has a small quantity of a fluid of density 1200kg/m³ placed in it. In equilibrium at room temperature - 21.9°C - the height of the fluid on both sides of the U-shaped tube are level. This is illustrated in the image below. What is the temperature of the gas in the spherical container when the left side of the fluid is 13.25cm higher than the right side of the fluid in the U-shaped tube? Atmospheric pressure is 101000Pa. °C

A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 6.56 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 1.35, what is the initial acceleration ? of the metal cylinder? Assume the pressure outside of the tube is 1.00 atmand that the top of the tube is open to the air.

A garden hose having with an internal diameter of 1.7 cm is connected to a (stationary) lawn sprinkler that consists merely of an container with 23 holes, each 0.20 cm in diameter. If the water in the hose has a speed of 0.93 m/s, at what speed does it leave the sprinkler holes? m/s

3 / 6 | 100% + | @ 2. A glass tube is bent into the shape shown, and filled with water. The right end of the tube is open to the air, but the left end of the tube is sealed. What is the pressure P₁ of the gas inside the sealed left end? (Note: the answer is not Patm.) BJ 0.5m 0.4m 0.3m 0.2m 0.1m Om PL ..... S ...

In the middle of a horizontally positioned closed tube is a h = 20cm long column of Hg. Each side of the tube entraps a l = 0.5 m column of air. The atmospheric pressure is H = 100 KPA.  When the tube is held vertically the column of Hg slides down with d = 10cm. By how much the column of Hg slide down from the middle of the tube if one end of the horizontally positioned tube is open.

A 0.504 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 5.88 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 3.03, what is the initial acceleration a of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm and that the top of the tube is open to the air.