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MAE221_10_Homework_04

MAE221_10_Homework_04 - KAIST Department of Mechanical...

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Unformatted text preview: KAIST Department of Mechanical Engineering MAE 221 A/B/C 2010 Fall Semester MAE 221 Fluid Mechanics Homework #4 Out : October 5, 2010 In : 11:59pm on October 12, 2010 (TUESDAY) Problem 1 (15 points): A partially full can of soft drink is placed at the outer edge of a child's merry-go-round, located R = 1.5 m from the axis of rotation. The can diameter and height are D = 65 mm and H = 120 mm. The can is half-full of soda, with specific gravity SG = 1.06. Assume rigid body motion. A. Find the slope of the liquid surface in the can if the merry-go-round spins at 0.3 revolution per second. B. Find the spin rate at which the can would spill, assuming no slippage between the can bottom and the merry-go-round. KAIST Department of Mechanical Engineering MAE 221 A/B/C 2010 Fall Semester Problem 2 (20 points): Water from a stationary nozzle strikes a flat plate as shown. The water leaves the nozzle at 15 m/s; the nozzle area is 0.01 m 2 . Assuming the water is directed normal to the plate, and flows ....
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MAE221_10_Homework_04 - KAIST Department of Mechanical...

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