On the bottom of page 150 of the Kaplan course physics book, it says that Bernoulli's equation is (P1)+(1/2*rho*v1^2)+(rho*g*y1)=(P2)+(1/2*rho*v2^2)+(rho*g*y2) where P is absolute pressure. Is P really the absolute pressure or the pressure at the surface. Later in the book it says that absolute pressure is the terms (P+rho*g*y) which contradicts what was mentioned earlier. Can somebody please explain? I am confused.
Thanks!
Thanks!
