Mastering Astronomy With Pearson Etext -- Standalone Access Card -- For The Cosmic Perspective Fundamentals (3rd Edition)
3rd Edition
ISBN: 9780135188781
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 1, Problem 4QQ
Choose the best answer to each of the following. Explain your reasoning.
The star Beteigeuse is about 600 light-years away. If it explodes tonight (a) we’ll know because it will be brighter than the full Moon. (b) we’ll know because debris from the explosion will rain down on us from space. (c) we won’t know about it until about 600 years from now.
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Think of our Milky Way Galaxy as a flat circular disk of diameter 100,000 light-years. Suppose we are one of 1000 civilizations, randomly distributed through the disk, interested in communicating via radio waves. How far away in light years would the nearest such civilization be from us on average? Show your working. (Hint: Begin by calculating the area of the disk. Find the area of one of a 1,000 squares. Consider the separation of the centres of two adjacent squares.)
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Chapter 1 Solutions
Mastering Astronomy With Pearson Etext -- Standalone Access Card -- For The Cosmic Perspective Fundamentals (3rd Edition)
Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....
Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Choose the best answer to each of the following....Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Prob. 18SEQCh. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...Ch. 1 - Explain all answers clearly, using complete...
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