cw20 - s ind the uid velocity where the pipe is narrow...

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patel (kp9583) – CW20 – Mackie – (20211) 1 This print-out should have 1 question. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points A constriction in a pipe reduces its diameter From 4 cm to 1 . 8 cm . Where the pipe is wider, the ±uid velocity is 8 m
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Unformatted text preview: / s . ind the uid velocity where the pipe is narrow. Correct answer: 39 . 5062 m / s. Explanation: Let : r 1 = 2 cm , r 2 = 0 . 9 cm , and v 1 = 8 m / s . A 1 v 1 = A 2 v 2 = constant r 2 1 v 1 = r 2 2 v 2 v 2 = v 1 p r 1 r 2 P 2 = (8 . 0 m / s) p 2 cm . 9 cm P 2 = 39 . 5062 m / s ....
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