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# How do the measured densities of a body compare at rest ISBN: 9780321909107 29

## Solution for problem 29E Chapter 35

Conceptual Physics | 12th Edition

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Problem 29E

How do the measured densities of a body compare at rest and in motion?

Step-by-Step Solution:

Solution 29E Step 1 of 3 : Density is the ratio of mass by volume or mass per unit volume. That is = m V Where is the density, m is the mass and V is volume. Under relativistic case, In rest frame the mass and volume will be different than the mass and volume when the frame is moving. The density at rest, mo o Vo Where is the density at rest,m isothe rest mass and V o is the volume in rest frame. o But once the object starts moving, in the moving frame; the density will be, = m 1 1 V 1 Where is1the relativistic density,m is 1he relativistic mass and V 1 is the volume in moving frame. Step 2 of 3: Since when the object starts moving with higher speed, the mass of the object changes. That is given by m = m0 = m …………...1 1 1v 0 c Similarly when the object is moving in one direction, the volume is given by V = V 1 v2 = V 0………..2 1 0 c2 Using equation 1 and 2 in above equation of relativistic density, m0 1= V0 = m 02 1 V 0

Step 3 of 3

##### ISBN: 9780321909107

This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. This full solution covers the following key subjects: body, Compare, densities, measured, motion. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. The answer to “How do the measured densities of a body compare at rest and in motion?” is broken down into a number of easy to follow steps, and 14 words. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. Since the solution to 29E from 35 chapter was answered, more than 276 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 29E from chapter: 35 was answered by , our top Physics solution expert on 04/03/17, 08:01AM.

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