Air flows through the device shown in the figure. If the flow rate is large enough, the pressure within the constriction will be low enough to neglect viscous effects. Compute the following:
a) Pressure head of air at section 2
b) The flow rate in cubic meters per second
c) Pressure needed at section 1 to draw water into section 2. Use unit weight of water equal to 9810 N/cubic meter and air to 12 N/cubic meter.