The Cosmic Perspective (9th Edition)
9th Edition
ISBN: 9780134874364
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
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Chapter 22, Problem 51EAP
To determine
The peak wavelength and corresponding temperature.
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Chapter 22 Solutions
The Cosmic Perspective (9th Edition)
Ch. 22 - Prob. 1VSCCh. 22 - Prob. 2VSCCh. 22 - Prob. 3VSCCh. 22 - Explain what we mean by the Big Bang theory.Ch. 22 - Prob. 2EAPCh. 22 - Prob. 3EAPCh. 22 - Prob. 4EAPCh. 22 - Prob. 5EAPCh. 22 - Prob. 6EAPCh. 22 - Prob. 7EAP
Ch. 22 - 8. Why do we think there was slightly more matter...Ch. 22 - 9. How long did the era of nucleosynthesis last?...Ch. 22 - 10. When we observe the cosmic microwave...Ch. 22 - 11. Briefly describe how the cosmic microwave...Ch. 22 - 12. How does the chemical abundance of helium in...Ch. 22 - Prob. 13EAPCh. 22 - Prob. 14EAPCh. 22 - Prob. 15EAPCh. 22 - Prob. 16EAPCh. 22 - Prob. 17EAPCh. 22 - Decide whether the statement makes sense (or is...Ch. 22 - Prob. 19EAPCh. 22 - Prob. 20EAPCh. 22 - Prob. 21EAPCh. 22 - Prob. 22EAPCh. 22 - Prob. 23EAPCh. 22 - Prob. 24EAPCh. 22 - Decide whether the statement makes sense (or is...Ch. 22 - Choose the best answer to each of the following....Ch. 22 - Prob. 27EAPCh. 22 - Prob. 28EAPCh. 22 - Prob. 29EAPCh. 22 - Prob. 30EAPCh. 22 - Prob. 31EAPCh. 22 - Prob. 32EAPCh. 22 - Prob. 33EAPCh. 22 - Prob. 34EAPCh. 22 - Prob. 35EAPCh. 22 - Prob. 37EAPCh. 22 - Prob. 38EAPCh. 22 - Prob. 41EAPCh. 22 - Prob. 42EAPCh. 22 - Prob. 43EAPCh. 22 - Prob. 44EAPCh. 22 - Prob. 45EAPCh. 22 - Prob. 46EAPCh. 22 - Prob. 47EAPCh. 22 - Prob. 48EAPCh. 22 - Prob. 49EAPCh. 22 - Gravity vs. the Electromagnetic Force. The amount...Ch. 22 - Prob. 51EAPCh. 22 - Prob. 52EAPCh. 22 - Prob. 53EAPCh. 22 - Prob. 54EAPCh. 22 - Daytime at “Night.” According to Olbers’ paradox,...
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- It is possible to derive the age of the universe given the value of the Hubble constant and the distance to a galaxy, again with the assumption that the value of the Hubble constant has not changed since the Big Bang. Consider a galaxy at a distance of 400 million light-years receding from us at a velocity, v. If the Hubble constant is 20 km/s per million light-years, what is its velocity? How long ago was that galaxy right next door to our own Galaxy if it has always been receding at its present rate? Express your answer in years. Since the universe began when all galaxies were very close together, this number is a rough estimate for the age of the universe.arrow_forward(a) Calculate The approximate age of the universe from the average value of the Hubble constant, To do this, calculate the time it would take to travel 1 Mly at a constant expansion rate of 20 km/s. (b) If deceleration is taken into account, would the actual age of the universe be greater or less than that found here? Explain.arrow_forwardSuppose the universe expands forever. Describe what will become of the radiation from the primeval fireball. What will the future evolution of galaxies be like? Could life as we know it survive forever in such a universe? Why?arrow_forward
- If the cosmic microwave background radiation (CMBR) is the remnant of the Big Bang’s ?reball, we expect to see hot and cold regions in it. What are two causes of these wrinkles in the CMBR? Are the observed temperature variations greater or less than originally expected?arrow_forwardWhat is the difference between hot dark matter and cold dark matter? How does this difference affect cosmology?arrow_forwardThinking about the ideas of space and time in Einstein’s general theory of relativity, how do we explain the fact that all galaxies outside our Local Group show a redshift?arrow_forward
- Explain the expanding Universe theory and its relationship to the Big Bang theory?arrow_forwardThe Andromeda Galaxy, M31, is the closest large spiral Galaxy to our Milky Way. When we lookat its chemical spectrum, we see that it's hydrogen alpha emission line has an observed wavelength of 655nm. a. Calculate z, being careful with the sign b. How fast is it moving in km/s c. Is it redshifted or blueshifted? Is it moving toward or away from us?arrow_forwardWhat is dark energy? What makes it different from other forms of energy and how do we know it exists?arrow_forward
- What do you mean by quarks?arrow_forward1- As the universe expands, a galaxy which is at a distance of 5.0 x 106 pc, is moving away from you. What is the velocity of the galaxy relative to you? [You are given that Hubble's Constant is H = 73(km/s) / (106 pc). 2- a) The distance to Alpha Centauri (the nearest large star to Earth) is 4.37 Ly (Light Years). What is the distance in miles (given that one Ly = 5.88 x 1012 miles?) b) Present rocket ship speeds are roughly 100,000 miles per hour, which is the same as 8.766 x 108 miles per year. At this speed, and using the distance you calculated in (a), how many years would it take to travel to Alpha Centauri?arrow_forward
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