An airplane with a 1.8m diameter propeller travels in still air with a density of 1.14 kg/m3 at 85m/s. is doing. The speed of the air passing through the propeller is 115 m/s relative to the plane. a) the thrust on the aircraft, b) theoretical horsepower required to turn the propeller, c) propeller efficiency, and d) across the blade Determine the pressure difference.

Given the sketch shown below, the diameter of the plunger Dp = 8 cm. The Ram diameter is Dr = 48 cm. The efficiency is 100%, the stroke of the plunger is 18 cm. The ram has to raise a load F2 = 2kN. Find: A) the force f1 exerted on the plunger. B) the number of strokes needed to raise the load given above by a distance of 10 cm. C) the volume of oil pumped if the load moves by 20 cm ( using plunger force in a ) D) what will be the new diameter of the ram piston if the new load force is 16 times the force exerted in the plunger the diameter of the plunger is kept to 8 cm.

The rate of water supply to a hydraulic crane is 90 liters per minute at a steady pressure of 70 bars. Find the input power and the efficiency if the output is 7.5 kW. The power in watts is the product of water supply pressure in N/m sq. and volume flow in M' per second.

A fan must accelerate 2.5 m3 / s of air, from rest to 8 m / s. If the air density is 950 g / m3, a) Determine the minimum power that must be supplied to the fan and, b) Determine the diameter of the fan blades to provide the given volumetric flow with an average speed of 8 m / s.

At T= 300 °C and atmospheric pressure, determine the speed of sound if the fluid: a). nitrogen b). hydrogen c). helium d). Water vapor

5)How much power a Wind Turbine with 32 meter Diameter blades can generate with a wind speed of 15 m/s. Assume kg Air density is 1.42 m3 b)What is the efficiency(in %) of the above Wind Turbine system if the max power generated was measured to be 0.35*106 Watts

Q.2 What is buoyant force? (a) Lateral force acting on a subrmerged body (b) Resultant force acting on a submerged body (c) Resultant force due to water on a body d) Resultant hydrostatic force on a body due to fluid surrounding it

A pipe has a cross-sectional area of 16.5cm2 at point A, where the speed of the fluid (water) is 1.2 m/s and the pressure is 2.00 atm. The pipe ascends 3.00 m and narrows to 8.20 cm2 at point C. a) what's the speed of the fluid at point C. b) what's the absolute pressure at point C.

A hydraulic motor has a 100cm3 volumetric displacement. If it has a pressure rating of 140 bars and receives oil from a 0.001 m3/s theoretical flow-rate pump, find the motor     a) speed    b) theoretical torque  c) theoretical kW power  (would you mind please showing your work so that I can study how to do it on my own? Thanks!)