em #3 PB Th unspecified liquid 30 h h Consider the very large tank shown above, with a drain exposed to air pressure and with an outflow of V = 40 ft/s h_110 ft, h_2 = 5 ft, V = 40 ft/s It has pressurized air overlying an unspecified fluid, with a pressure (P_B) above atmospheric pressure values of 10 psi. Determine the specific weight of that unspecified fluid. Assume you can ignore viscosity, and assume steady state conditions. Assume that the drainage rate of this tank is so slow that the liquid's surface hardly moves (which means that you can assume its speed of descent = zero).