Cater would happ -h, if the water water with a density A. Ir. I'V ase e sam hin Dalm Problems from "The MCAT Physics Book" A pipe with a circular cross section has water flowing in it from A to B. The radius of the pipe at A is 6 cm, while the radius at B is 3 cm. At end A the flow rate is 0.06 m/s. 20. What is the flow rate at end B? A. 0.03 m/s B. 0.06 m/s C.0.12 m/s D. 0.24 m/s 21. A tiny propeller is inserted at point B in order to measure the velocity of the water. What does it read? A. 21 m/s B. 67 m/s C. 85 m/s D. 96 m/s while 22. A pipe has a circular cross section, such that the radius of the pipe at point A is r the radius at B is B. An incompressible fluid is flowing through the pipe at flow rate f. The velocity of the fluid particles at point A is VA Which expression gives the velocity of the fluid particles at point B? A.frB B.fr C.firB D. VA 2 2 FB A tank of water has a hose coming out of the top. The hose is filled with water and the other end is below the tank, so that the system acts as a syphon. The end of the hose outside the tank is at height = 0 meters. The bottom of the tank is at height h₁, the end of the hose inside the tank is at height h₂, and the top of the water is at height h3. Assume the flow is without viscosity. hy 112 31. Which is the best expression for the velocity of the flow coming out of the hose? A. √√2gh B. √2gh₂ C. 2ghz D. √√2g(h-h) 32. Which is the best expression for the pressure at the bottom of the tank? A.P. B. P. tetr C. P D. P. atm alm - pg(h3-h₁) +pg(h3-h₁) pg(h3+ h₁) +pg(h3+h₁) CS Scanned with CamScanner