The Cosmic Perspective Fundamentals (2nd Edition)
2nd Edition
ISBN: 9780133889567
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 10, Problem 10QQ
Choose the best answer to each of the following. Explain your reasoning.
How would a flashing red light apppear as it fell into a black hole? (a) Its flashes would look the same. (b) Its flashes would appear bluer. (c) Its flashes would shift to the infrared part of the spectrum.
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The time it takes for a cloud 106,000 AU in radius
to collapse in "free-tall to form a new star is half
the time it would take for an object to orbit the star
on an extremely elliptical orbit with a semimajor
axis of 53,000 AU (half the 106.000 AU radius).
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Use Kepler's third law to find the collapse time, assuming the star has the same mass as the Sun.
Express your answer in years to two significant figures.
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Chapter 10 Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Ch. 10 - Prob. 1QQCh. 10 - Prob. 2QQCh. 10 - Prob. 3QQCh. 10 - Prob. 4QQCh. 10 - Prob. 5QQCh. 10 - Prob. 6QQCh. 10 - Prob. 7QQCh. 10 - Choose the best answer to each of the following....Ch. 10 - Prob. 9QQCh. 10 - Choose the best answer to each of the following....
Ch. 10 - Prob. 11QQCh. 10 - Prob. 12QQCh. 10 - Explain all answers clearly, with complete...Ch. 10 - Explain all answers clearly, with complete...Ch. 10 - Prob. 15SEQCh. 10 - Prob. 16SEQCh. 10 - Prob. 17SEQCh. 10 - Prob. 18SEQCh. 10 - Prob. 19SEQCh. 10 - Explain all answers clearly, with complete...
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