Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Textbook Question
Chapter 12, Problem 20SEQ
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) designates a quantitative problem, for which you should show all your work.
Distances Between Galaxies. If you were to divide the present-day universe up into cubes with sides 10 million light-years long, each cube would contain, on average, about one galaxy similar in size to the Milky Way. Now suppose you traveled back in time, to an era when the average distance between galaxies was one-quarter of its current value. How many galaxies similar in size to the Milky Way would you expect to find, on average, in cubes of the same size? In order to simplify the problem, assume that the total number of galaxies of each type has not changed between then and now. Based on your answer, would you expect collision, to be much more frequent at that time or only moderately more frequent?
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Chapter 12 Solutions
Cosmic Perspective Fundamentals
Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Prob. 2QQCh. 12 - Prob. 3QQCh. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....
Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Choose the best answer to each of the following....Ch. 12 - Prob. 13SEQCh. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...Ch. 12 - Explain all answers clearly, with complete...
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