that just under the wing ("lower"). Explain why, in terms of the continuity equation. (b) This results in a net force on the wing, that points in the upward direction: the air ow, which is determined by the shape and orientation of the wing, provides lift to the wing. Explain why, in terms of part (a) and Bernoulli's equation. 8. In the diagram below, the height of the liquid in the standpipes decreases along the ow, which indicates that the pressure drops along the horizontal pipe. But the pipe has a uniform cross section and the owing liquid is incompressible. Explain. Study Problems: Module 10 -- Elements of fluid mechanics (Chapter 13) @2015 University ofRocheste'r 6 All rights reserved