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Assignment 5

# Assignment 5 - ° 1 ± 1 1 ° 2 ± 2 2 ° 3 ± 3 3 ° 4 ±...

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CHEE3363---Fluid Mechanics Assignment 5 Pro 4.66 A tank of water sits on a cart with frictionless wheels as shown. The cart is attached using a cable to a 9 kg mass, and the coefficient of static friction of the mass with the ground is 0.5. At time t=0, a second cable is used to remove a gate blocking the tank exit. Will the resulting exit flow be sufficient to start the tank moving? (Assume the water flow is frictionless.) Pro 4.67 A gate is 0.5 m wide and 0.6 m tall, and is hinged at the bottom. On one side the gate holds back a 0.5-m deep body of water. On the other side, a 10-cm diameter water jet hits the gate at a height of 0.5 m. What jet speed V is required to hold the gate vertical? What will the speed be if the body of water is lowered to 0.25 m? What will the speed be if the water level is at the top of the gate?

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Pro 4.70 Obtain expressions for the rate of change in mass of the control volume shown, as well as the horizontal and vertical forces required to hold it in place, in terms of
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Unformatted text preview: ° 1 , ± 1 , ? 1 , ° 2 , ± 2 , ? 2 , ° 3 , ± 3 , ? 3 , ° 4 , ± 4 , ? 4 , and the constant density ² . Pro 4.85 A reducer in a piping system is shown. The internal volume of the reducer is 0.2 ³ 3 and its mass is 25 ´µ . Evaluate the total force that must be provided by the surrounding pipes to support the reducer. The fluid is gasoline. Pro 4.87 A 30 ° reducing elbow is shown. The fluid is water. Evaluate the components of force that must be provided by the adjacent pipes to keep the elbow from moving. Pro 4.123 Water from a stationary nozzle impinges on a moving vane with turning angle ° = 120 ° . The vane moves away from the nozzle with constant speed, ? = 10 ± ² , and receives a jet that leaves the nozzle with speed ? = 30 ± ² . The nozzle has an exit area of 0.004 ± 2 . Find the force that must be applied to maintain the vane speed constant....
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Assignment 5 - ° 1 ± 1 1 ° 2 ± 2 2 ° 3 ± 3 3 ° 4 ±...

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