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While redesigning a rocket engine, you want to reduce its

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

Solution for problem 76P Chapter 9

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 76P

While redesigning a rocket engine, you want to reduce its weight by replacing a solid spherical part with a hollow spherical shell of the same size. The parts rotate about an axis through their center. You need to make sure that the new part always has the same rotational kinetic energy as the original part had at any given rate of rotation. If the original part had mass ?M?, what must be the mass of the new part?

Step-by-Step Solution:

Solution 76P Step 1: The kinetic energy of rotating disk is K.E = 1/2 Iw 2 To have same kinetic energy for any as the two parts.must have same moment of inertia.

Step 2 of 2

Chapter 9, Problem 76P is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

The answer to “While redesigning a rocket engine, you want to reduce its weight by replacing a solid spherical part with a hollow spherical shell of the same size. The parts rotate about an axis through their center. You need to make sure that the new part always has the same rotational kinetic energy as the original part had at any given rate of rotation. If the original part had mass ?M?, what must be the mass of the new part?” is broken down into a number of easy to follow steps, and 78 words. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 76P from 9 chapter was answered, more than 247 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 76P from chapter: 9 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This full solution covers the following key subjects: part, mass, spherical, original, new. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460.

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