Answered: V1, hị Width b into paper V2, hz

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A river of width b and depth h ₁ passes over a submerged
obstacle, or “drowned weir,” in Fig. P3.80, emerging at a
new fl ow condition ( V ₂ , h ₂ ). Neglect atmospheric pressure,
and assume that the water pressure is hydrostatic at both
sections 1 and 2. Derive an expression for the force exerted
by the river on the obstacle in terms of V ₁ , h ₁ , h ₂ , b , ρ , and
g . Neglect water friction on the river bottom.

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