A large, open tank contains an ideal fluid of density \(\rho\). A siphon made of a uniform tube of constant cross-sectional area \(A\) is used to drain the fluid. The tube goes over the top edge of the tank, reaching a height \(h\) above the surface of the fluid, and then extends downward. The open end of the tube is at a depth \(d\) below the surface of the fluid, where the fluid exits into the air. The atmospheric pressure is \(P_0\). The horizontal cross-sectional area of the tank is much larger than \(A\), so the speed of the fluid's surface can be considered negligible. Energy dissipation due to viscosity is negligible.