Blade 75° 0.25 m/s Shaft

Water is provided at a rate of 0.1 L/s at 200°C from a faucet to the hose with nozzle. The hose is approximately 25 centimeters in diameter. When she turned on the power washer's motor, a jet of water with a velocity of 50 m/s ejected at a height of up to 5 m. Around 10% of the power input is transferred as heat from the motor to the surroundings. In kW, what is the power input? Assume a change in enthalpy of 12.54 kJ/kg for the water.

Consider the propeller tube shown in. The density of air is Pa = 1 23 kg/m. The diameter of the nozzles at B, C, D, and E is 100 mm 100 mm 0.5 m M D 60 rad/s 0.5 m 0.5 m 0.5 m Part A If the propeller tube rotates at a constant rate of 60 rad/s when 1.80 kg/s of air enters at A, determine the frictional torque M acting on the tube. Express your answer to three significant figures and include the appropriate units. Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise.

Consider water flow through a horizontal, short garden hose at a rate of 40 kg/min. The velocity at the inlet is 1.5 m/s and that at the outlet is 16 m/s. The hose makes a 90° turn to a vertical direction before the water is discharged. Disregard the weight of the hose and water. Taking the momentum-flux correction factor to be 1.04 at both the inlet and the outlet, the reaction force in the vertical direction required to hold the hose in place is (a) 11.1 N (b) 10.1 N (c) 9.3 N (d) 27.2 N (e) 28.9 N

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)

A storm drain has a maximum capacity of 120 L/min. During heavy rains, an influx of 240 L/min approaches the drain. Assuming the drain is cylindrical, by how much would the drain radius need to be increased to handle the heavier rainfall? Assume the water travels at the same linear speed in both drains.   The answer is 1.4. Please explain why   A 16 times greater   B 42 times greater   C 2 times greater   D 1.4 times greater

A plate receives a jet of water (p = 1000 kg / m3) which it distributes symmetrically. The plate has a mass of 756 kg and is supported by the tips shown in the figure. Determine the force exerted by the jet on each tip and the instantaneous acceleration the plate would experience if the tips were abruptly removed. 0.4 m/s 500 mm Acceleration = m/s?

The gauge pressure of water at A is 150.5 kPa. Water flows through the pipe at A with a velocity of 18 m/s, and out the pipe at B and C with the same velocity v. Neglect the weight of water within the pipe and the weight of the pipe. The pipe has a diameter of 50 mm at A, and at B and C the diameter is 25 mm. pw = 1000 kg/m³. (Figure 1) Figure v B 22 A 18 m/s Part A Determine the component of force exerted on the elbow necessary to hold the pipe assembly in equilibrium. Express your answer to three significant figures and include the appropriate units. F₂ = Submit Part B F₁ = Submit μA Value Request Answer Determine the y component of force exerted on the elbow necessary to hold the pipe assembly in equilibrium. Express your answer to three significant figures and include the appropriate units. Provide Feedback μA Value S Units Request Answer Review Units Next >

5. A 60-kg ice skater is standing on ice with ice skates (negligible friction). She is holding a flexible hose (essentially weightless) that directs a 2-cm-diameter stream of water horizontally parallel to her skates. The water velocity at the hose outlet is 10 m/s relative to the skater. If she is initially standing still, determine: (a) the velocity of the skater and the distance she travels in 5 s., (b) how long it will take to move 5 m and the velocity at that moment. Ice skater 10 m/s D = 2 cm

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