試題詳解

3.An incompressible fluid flows through a horizontal pipe. At one point in the pipe the pressure in the fluid is p₁ and the fluid speed is v₁. Further down the pipe pressure is p₂ and the flued speed is 2v1. What can be concluded about p₁ and p₂?
(A)
(B)
(C)
(D)
(E)only that