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Get Full Access to The Cosmic Perspective Fundamentals - 2 Edition - Chapter 14 - Problem 1qq
Get Full Access to The Cosmic Perspective Fundamentals - 2 Edition - Chapter 14 - Problem 1qq

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# Choose the best answer to each of the | Ch 14 - 1QQ

ISBN: 9780133889567 46

## Solution for problem 1QQ Chapter 14

The Cosmic Perspective Fundamentals | 2nd Edition

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Problem 1QQ

Problem 1QQ

Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.

Measurements of how orbital speeds depend on distance from the center of our galaxy tell us that stars in the outskirts of the galaxy (a) orbit the galactic center just as fast as stars closer to the center. (b) rotate rapidly on their axes. (c) travel in straight, flat lines rather than elliptical orbits.

Step-by-Step Solution:

Step 1 of 1

Photographs of spiral galaxies makes it look like the most of the matter is concentrated in the centre of galaxies. But orbital motion tells us that the opposite is true. If most of the masses were concentrated near the galaxy’s centre the orbital speed of the distant stars would be smaller. Instead the speed of  the distant stars is same as that of the stars near the centre of the galaxy.

Therefore, the measurements of how orbital speeds depend on distance from the center of our galaxy tell us that stars in the outskirts of the galaxy “orbit the galactic center just as fast as stars closer to the center”.

Step 2 of 1

##### ISBN: 9780133889567

This full solution covers the following key subjects: center, stars, Galaxy, Lines, choose. This expansive textbook survival guide covers 15 chapters, and 313 solutions. The full step-by-step solution to problem: 1QQ from chapter: 14 was answered by , our top Physics solution expert on 07/18/17, 06:37AM. The answer to “Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.Measurements of how orbital speeds depend on distance from the center of our galaxy tell us that stars in the outskirts of the galaxy (a) orbit the galactic center just as fast as stars closer to the center. (b) rotate rapidly on their axes. (c) travel in straight, flat lines rather than elliptical orbits.” is broken down into a number of easy to follow steps, and 71 words. The Cosmic Perspective Fundamentals was written by and is associated to the ISBN: 9780133889567. Since the solution to 1QQ from 14 chapter was answered, more than 271 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: The Cosmic Perspective Fundamentals, edition: 2.

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