plz help me...the question is to find the velocity of the water at point B .....in the solution they say that pressure at P =pressure at B....velocity at P is same as velocity at B but there is a potential energy difference between P and B!!!!!! where does the energy go!!! and another doubt is....if water is considered incompressible....then in a steady streamline....is it that the magnitude of velocity at all points must be same ????? if so how come when u apply bernoullis theorem to water flowing in a tube....and if p1+rowgh1 is not equal to p2+rowgh2....then we get that v1 not equal to v2....but the liquid is incompressible and this is not the case!!!! what is the flaw!!!!??????