An incompressible fluid is flowing through a horizontal tube which, at some point has O 1. a constriction such that the area of the tube Because the fluid is incompressible, the pres- becomes much smaller. sure and speed of flow must be constant throughout the tube. O 2. I B - The pressure and speed of flow are both much greater at point A than at point B. How do the fluid pressure and speed of flow 0 3. compare at point B in the constricted region to their values at point A in the normal part At point B, the speed of flow is less but the of the tube? pressure is greater than at point A. 0 4. The pressure and speed of flow are both much greater at point B than at point A. 5. At point A, the speed of flow is less but the pressure is less at point B