The Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134059068
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 20, Problem 35EAP
Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.
35. If you observed the redshifts of galaxies at a given distance to he twice as large as they are now, then you would determine a value for Hubble’s constant that was (a) twice as large as its current value. (b) equal to its current value. (C) half its current value.
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Please solve all three sub-parts accurate and exact. Thanks I'll rate it up.
Hubble's First Attempt. Edwin Hubble's first attempt to measure the universe's expansion rate was flawed because the standard candles he was using were not properly calibrated. Look at (Figure 1)
a.Estimate the value of Ho corresponding to the solid line in the figure. Express your answer kilometers per second per million light-years to two significant figures.
b.What is the approximate age of the universe indicated by that erroneous value of Ho? Express your answer in years to one significant figure.
Problem 5. Galaxy evolution
1. What is galaxy evolution and how can we quantify the evolution of galaxies using luminosity functions?
2. Sketch the cosmic star formation rate history (cosmic star birth history) and clearly indicate the cosmic
down, cosmic noon and the present day.
3. Briefly explain the evolution/change of star formation rate over the history of the universe (i.e explain
the sketch in 2).
Chapter 20 Solutions
The Cosmic Perspective (8th Edition)
Ch. 20 - Prob. 1VSCCh. 20 - Prob. 2VSCCh. 20 - Prob. 3VSCCh. 20 - Prob. 4VSCCh. 20 - Use the following questions to check your...Ch. 20 - Prob. 6VSCCh. 20 - Why do we need to understand the evolution of the...Ch. 20 - Prob. 2EAPCh. 20 - Prob. 3EAPCh. 20 - Prob. 4EAP
Ch. 20 - Prob. 5EAPCh. 20 - Prob. 6EAPCh. 20 - Prob. 7EAPCh. 20 - Prob. 8EAPCh. 20 - Prob. 9EAPCh. 20 - Prob. 10EAPCh. 20 - Prob. 11EAPCh. 20 - Prob. 12EAPCh. 20 - Prob. 13EAPCh. 20 - Prob. 14EAPCh. 20 - What is the cosmological horizon, and what...Ch. 20 - Prob. 16EAPCh. 20 - Prob. 17EAPCh. 20 - Prob. 18EAPCh. 20 - Prob. 19EAPCh. 20 - Prob. 20EAPCh. 20 - Decide whether the statement makes sense (or is...Ch. 20 - Prob. 22EAPCh. 20 - Prob. 23EAPCh. 20 - Prob. 24EAPCh. 20 - Prob. 25EAPCh. 20 - Prob. 26EAPCh. 20 - Choose the best answer to each of the following....Ch. 20 - Prob. 28EAPCh. 20 - Choose the best answer to each of the following....Ch. 20 - Prob. 30EAPCh. 20 - Prob. 31EAPCh. 20 - Prob. 32EAPCh. 20 - Choose the best answer to each of the following....Ch. 20 - Choose the best answer to each of the following....Ch. 20 - Choose the best answer to each of the following....Ch. 20 - Prob. 36EAPCh. 20 - Prob. 37EAPCh. 20 - Prob. 38EAPCh. 20 - Prob. 39EAPCh. 20 - Prob. 40EAPCh. 20 - Prob. 41EAPCh. 20 - Prob. 42EAPCh. 20 - Prob. 43EAPCh. 20 - Prob. 44EAPCh. 20 - Prob. 45EAPCh. 20 - Prob. 46EAPCh. 20 - Prob. 47EAPCh. 20 - Prob. 48EAPCh. 20 - Prob. 49EAPCh. 20 - Prob. 50EAPCh. 20 - Prob. 51EAPCh. 20 - Prob. 52EAPCh. 20 - Prob. 53EAPCh. 20 - Prob. 54EAPCh. 20 - Prob. 55EAPCh. 20 - Prob. 56EAPCh. 20 - Prob. 57EAPCh. 20 - Prob. 58EAPCh. 20 - Prob. 59EAP
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