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With the assumptions of Example 18.4 (Section 18.1), at

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 17E Chapter 18

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 17E

With the assumptions of Example 18.4 (Section 18.1), at what altitude above sea level is air pressure 90% of the pressure at sea level?

Step-by-Step Solution:

Solution 17E Step 1: The calculation in example 18.4 shows, the pressure decreases exponentially with the increase in altitude. P = P e0p ( Mgy / RT)-----------------(1) At the sea level the pressure is 1.013 × 10 Pa. The pressure must be 90 %of the pressure at the sea level. So, the pressure will be, 1.013 × 10 Pa × 90 % = 0.9117 × 10 Pa. 5 Step 2: By putting this pressure in equation 1 we can get the height or the y value. 5 P = P e0p ( Mgy / RT) = 0.9117 × 10 Pa 5 5 1.013 × 10 exp ( Mgy / RT) = 0.9117 × 10 exp ( Mgy / RT) =(0.9117 × 10 ) / (1.013 × 10 ) = 0.9 y = 0.105 / (Mg / RT) = 0.105 RT / Mg

Step 3 of 3

Chapter 18, Problem 17E is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 17E from 18 chapter was answered, more than 287 students have viewed the full step-by-step answer. This full solution covers the following key subjects: level, Sea, pressure, air, Example. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The answer to “With the assumptions of Example 18.4 (Section 18.1), at what altitude above sea level is air pressure 90% of the pressure at sea level?” is broken down into a number of easy to follow steps, and 24 words. The full step-by-step solution to problem: 17E from chapter: 18 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. University Physics was written by and is associated to the ISBN: 9780321675460.

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