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# Consider a river flowing toward a lake at an average speed ISBN: 9780071284219 39

## Solution for problem 21P Chapter 5

Fluid Mechanics | 2nd Edition

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Problem 21P

Consider a river flowing toward a lake at an average speed of4 m/s at a rate of 500 m3/s at a location70 m above the lake surface. Determine the total mechanical energy of the river water per unit mass and the power generation potential of the entire river at that location. Step-by-Step Solution:

Solution 21P

Step 1</p>

In this problem, a river is flowing to a lake at a particular speed from a particular height. The rate of water flowing is provided. We have to calculate the total mechanical energy of the river and the power generation potential of the entire river.

Provided data,

Speed of the river, Flow rate of the river, Height of the river flowing from the lake surface, We know the density of freshwater, Step 2</p>

Calculating the kinetic and potential energy per unit mass

KE per unit mass is, That is,   PE per unit mass is, That is,  Step 3 of 3

##### ISBN: 9780071284219

Since the solution to 21P from 5 chapter was answered, more than 329 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Fluid Mechanics, edition: 2. Fluid Mechanics was written by and is associated to the ISBN: 9780071284219. The full step-by-step solution to problem: 21P from chapter: 5 was answered by , our top Engineering and Tech solution expert on 07/03/17, 04:51AM. This full solution covers the following key subjects: river, lake, location, mechanical, entire. This expansive textbook survival guide covers 15 chapters, and 1547 solutions. The answer to “Consider a river flowing toward a lake at an average speed of4 m/s at a rate of 500 m3/s at a location70 m above the lake surface. Determine the total mechanical energy of the river water per unit mass and the power generation potential of the entire river at that location.” is broken down into a number of easy to follow steps, and 51 words.

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