Water enters a motor through a 500-mm-diameter pipe under a pressure of 15 kPa. It leaves through a 800-mm-diameter exhaust pipe with a pressure of 5 kPa. A vertical distance of 3 m separates the centers of the two pipes at the sections where the pressures are measured. If 600 liters of water pass the motor each second, compute the horsepower supplied to the motor.

An elbow deflects water upward and discharges it to the atmosphere at a specific rate. Determine the gage pressure at the inlet of the elbow and the anchoring force needed to hold the elbow in place. (gage pressure at the outlet is zero)

3 - Oil flows through the horizontal pipe under a pressure of 400 kPa and a velocity of 2.5 m/s at A. Determine the pressure in the pipe at B if the pressure at C is 150 kPa.Disregard any difference in elevation. Consider the specific mass of the oil equal to 880 kg/m3.

Please could you state which formulae you are using before applying it so I can see how the question is answered   Thanks

A high-pressure washing system's pump supplies 1 gallon of water persecond at 100 psi pressure. The nozzle should be designed so that the static pressureof the water as it exits the nozzle is the same as the atmospheric pressure. If theinside diameter of the hose leading from the pump to the nozzle is 2 in., whatshould the diameter of the nozzle exit be? What will be the velocity of the waterat the exit of the nozzle?

Water flows into the pipe connection shown at '6' and '2' and leaves the system at '1'. It is not open to the atmosphere at any connection. The gauge pressure at both inlets is 12 psig and the velocity at both inlets is 9.5 ft/sec. Determine the horizontal force (lbf) needed to hold the fittings in place. 2 7.5" 1 2.5" 3 4 5 6 1.0"

Find an expression for the velocity of water leaving the sprinkler. Find an expression for the gauge pressure at point A, a distance L1, upstream of the narrow pipes. Express the answer in terms of the flowrate, Q. The inner diameter of the first segment of the pipe is d1=10mm, the inner diameter of the second set of pipes is d2=1mm, with N=25. The flowrate through the sprinkler is Q=0.2 L/s. Flow in pipes typically becomes turbulent when the Reynolds number exceeds 2000. Comment on the accuracy of the assumption that the flow could be treated as laminar everywhere. May be assumed water has a density of 1000kg/m^3 and a viscosity of 1mPa s.