Slide 5 of 12
Notes:
When fluid isn’t moving, Bernoulli’s equation describes how pressure varies with depth. When the fluid moves, the same equation describes how both pressure and speed must change together with depth in the fluid.
Remember, though, that Bernoulli’s equation depends on conservation of mechanical energy, so any turbulence or viscous drag must be negligible if it is to be applied. In this case, for example, you can probably only find the maximum height the water jet reaches -- any turbulence in the flow or excessive constriction in the hose will result in a lower height.
