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# A 6.0-cm-diameter horizontal pipe gradually narrows to 4.0

ISBN: 9780130606204 3

## Solution for problem 41P Chapter 10

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition

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Problem 41P

A 6.0-cm-diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32.0 kPa and 24.0 kPa, respectively. What is the volume rate of flow?

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ANSWER:The mass of the block is 10 kg.The coefficient of kinetic friction given for steel is, = 0.60. KAs the block is sliding over a steel table, there will be a frictional force which is,F = K N = × Kg = 0.60 × 10 × 9.8 = 58.8 N .By definition, work is, W = F. dS = F S cos ------------------(1) | || |Where we have taken out the force out of the integral sign as the force is constant we haveconsidered. The integral of dS gives the net displacement. And theta is the angle betweenforce and the infinitesimal displacement vector.STEP 2:So far we know the force and to get the net displacement we need to solve it according toabove given data.The speed was 1 m/s and it moved...

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A 6.0-cm-diameter horizontal pipe gradually narrows to 4.0