1. The problem statement, all variables and given/known data A jet of liquid of density ρ surrounded by air flows vertically downwards from a nozzle of area Ao. The stagnation pressure of the jet at exit from the nozzle is po and the surrounding air is at pressure B. The acceleration due to gravity is g. If the jet flow is one-dimensional, incompressible and frictionless, and the air density is regarded as negligible, (i) Derive an equation for the jet speed at exit from the nozzle (ii) Derive an equation for the jet speed a vertical distance z below the nozzle assuming the surrounding air pressure is unchanged (iii) Derive an equation for the cross-sectional area A of the jet a vertical distance z below the nozzle 2. Relevant equations 3. The attempt at a solution (i) jet speed from exit continuity equation Q(dot)= A1V1 V1=Q/A1 ? (ii) Po= B+0.5*ρ*v^2+ ρgz (iii) help is needed! are the parts for (i) and (ii) correct guidance to put me in the right direction would be very much appreciated!