Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 25, Problem 26Q
To determine
The things cosmic background
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The background radiation has an average temperature of 2.7 K, using Wien’s Law, the current background radiation in the microwave region, the peak wavelength is 1mm. In the past, when the cosmic background radiation had a peak wavelength of 51.1 µm, calculate the relative size of the universe compared to the current size of the universe, that is, the universe was how much smaller by a factor of what?
Round to TWO places past the decimal
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Chapter 25 Solutions
Universe: Stars And Galaxies
Ch. 25 - Prob. 1QCh. 25 - Prob. 2QCh. 25 - Prob. 3QCh. 25 - Prob. 4QCh. 25 - Prob. 5QCh. 25 - Prob. 6QCh. 25 - Prob. 7QCh. 25 - Prob. 8QCh. 25 - Prob. 9QCh. 25 - Prob. 10Q
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What is the evidence that the Universe was homogeneous during its first 400,000 years?arrow_forwardWhat evidence shows that the Universe is expanding? What evidence shows that the Universe began with a Big Bang?arrow_forwardWhat is the evidence that a large fraction of the matter in the universe is invisible?arrow_forward
- Why couldnt atomic nuclei exist when the Universe was less than about 2 minutes old?arrow_forwardWhat is a super force?arrow_forwardThe cosmic "dark ages" represent that time in the history of the universe when: the inflation of a singularity in the first trillionth of a trillionth of a second of time when matter and energy were interchangeable and darkness prevailed atoms of H and He had not formed yet, so the dark ages represent the time just before the release of the cosmic microwave background dark energy came into being around 5 to 6 billion years ago, accelerating the expansion of the universe the light of the cosmic microwave background began to dim and stars and galaxies had yet to form photons of light energy were trapped within a plasma of H and He nuclei and loose electrons, creating a foggy, opaque universe MacBook Airarrow_forward
- If the universe had a Hubble Constant (Ho) of 100km/s/Mpc and a critical density of 1. The universe will collapse on itself and come to an end collapse on itself but regenerate with a bounce expand and the speed of expansion will increase with time expand and the speed of expansion will decrease with timearrow_forwardWhat is the Big Bang? What evidence do we see in the Universe that everything-which-exists exploded oddly out of nothing and for no rhyme or reason?arrow_forward
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