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A centrifugal pump moves 10 l/s water from a pressure

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A centrifugal pump moves 10 l/s water from a pressure of 100kPA to a pressure of 550 kPA in one stage....

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Reference: Fluid mechanics, 9th edition, Streeter, Wylie and Bedford
From page 517, the theoretical head is:

You should find V1 and V2 first:
= 5.1 (m/s)

= 8 ...

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