In a pressurized pipe, water flows at 170 C. The standard atmospheric pressure is 101.312 kPa (abs) and the local atmospheric pressure is 97.727 kPa (abs). Determine the gage pressure and its equivalent water height value that allows the cavitation to start. Show all these values schematically.

solve it fast

In a system where the Froude model will be used, the flow rate for the prototype is given as 3 m3 / s. In the model, the velocity at point A is 0.2 m / s and the force acting on point A is calculated as 1 N. Calculate the flow rate and velocity of the point corresponding to point A in the model and the magnitude of the force affecting the same point. Determine the pressure scale. The geometric scale will be taken as 1/100. Fluids used in the model and prototype are the same and are water

Water flows from a big tank through a big pipe that divides into two smaller pipes, like in the picture. If viscuous effects are not significant, determine the flux from the tank and pressure on point 1. Express the result in [kPa]