The Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134059068
Author: Jeffrey O. Bennett, Megan O. Donahue, Nicholas Schneider, Mark Voit
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 22, Problem 18EAP
Decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly; not all of these have definitive answers,, so your explanation is more important than your chosen answer.
18. Observed characteristics of the cosmic microwave back-ground can be explained by assuming that it comes from individual stars and galaxies.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Physics: Elecrostatics
WCLN.ca
Part 1: Core
Basic Research:
Describe the basic structure and function of a cathode ray tube from this era. Include any significant
dates and scientists.
Complete the table below (be sure to quote sources in a Bibliography format- be sure to look up proper
formatting from a reputable source)
Cathode ray tube
What was observed?
What this showed ?
(ic. What did this prove about the physical nature
of a "cathode ray"?)
Maltese cross tube
can be us ed to Showcathode rayS ina
Some of the
propertieS ofa
beam of electronsSStraigh+ lineS by
Maltese cross
Crookes tube are
あeen す travejn
COSHAgs sharp sihadaw
famatfAe eroが卵
fluorescing glass. ey
にanalssび
magne+i
ectet by
Linduction coil-
Screen display tube with
magnets
screen display
Paddle wheel tube
rotating wheel
wheel
wheel
Screen display tube with
electric plates
electric plates
2021-07-14
Page 3 of 7
38. The Cosmic Microwave Background is remarkable in many ways. Let's illustrate this by personalizing the CMB a bit.
a) Imagine that the Earth is a sphere with a radius equal to its actual equatorial radius (The radius of Earth at the equator is 3,963 miles (6,378 kilometers). If the radius of the Earth is assumed to be constant to the same level of uniformity as the temperature fluctuations of the CMB—that is, to one part in 100,000—then how high would the highest mountains be relative to the mean surface radius of the Earth?
b) Calculate the ratio of the age of the Universe when the CMB was created and the age of the Universe today (in late 2021). If a person is 20 years old, What was their age relative to their current age adopting that fraction? Give the result in hours.
1. What is wave-particle duality? How does it apply to photons and electrons? Why do we not generally observe this in everyday life?
2. What is the Hubble Law? What does it say about the evolution of the universe? What does it have to do with redshift?
Chapter 22 Solutions
The Cosmic Perspective (8th 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 - Unanswerd Questions. Briefly describe one...Ch. 22 - Prob. 37EAPCh. 22 - Prob. 38EAPCh. 22 - Prob. 39EAPCh. 22 - Prob. 40EAPCh. 22 - Prob. 41EAPCh. 22 - Prob. 42EAPCh. 22 - Prob. 43EAPCh. 22 - Prob. 44EAPCh. 22 - Prob. 45EAPCh. 22 - Prob. 46EAPCh. 22 - Prob. 47EAPCh. 22 - Be sure to show all calculations clearly and state...Ch. 22 - Prob. 49EAPCh. 22 - Prob. 50EAPCh. 22 - Prob. 51EAPCh. 22 - Prob. 52EAPCh. 22 - Prob. 53EAPCh. 22 - Prob. 54EAPCh. 22 - Prob. 55EAPCh. 22 - Prob. 56EAP
Knowledge Booster
Learn more about
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
- ¹arrow_forwardPlease answer correctlyarrow_forwardPlease answer fast 1. Lambda and Vacuum Energy Analze the relationship between Lambda (on one side of Einstein's equation) and vacuum energy (on the other side), including the implied equation of state and how it evolves with time. 2. Growth of Clustering Describe how clustering of mass and, therefore, galaxies grows. How could observations of galaxy clustering at different redshift be combined to constrain cosmological parameters?arrow_forward
- Answer it correctly please.arrow_forwardЕxplore Enrichment Activity 1: Concepts in a Box! Direction: Complete the boxes by supplying the right words. Choose your answer from the given choices found in the box below. Write your answers on a sheet of paper. Maxwell's Electromagnetic Theory have conflicting ideas solved by is divided to deals with Special Relativity 3. -deals with- is backed up by is backed up by Principle of equivalence 6. 7. result in 9. 10. 11. 12. General relativity Time dilation Newtonian Mechanics Mass - energy equivalence Einstein's relativity Length contraction Cosmic speed limit Principle of relativity Accelerated frames of reference Inertial frames of referencearrow_forwarddescribe the interaction of light energy and matter (How does radiation transfer energy to matter? And why/how does matter emit radiation?)arrow_forward
- Question A7 State three pieces of evidence that support the idea that the Universe began in a hot Big Bang, and explain how each piece of evidence supports the hot Big Bang model. Describe the ob- servational evidence that supports the idea that the Universe is pervaded by Dark Energy, and explain why each piece of evidence you cite supports the Dark Energy model.arrow_forwardPlease answer within 90 minutes.arrow_forwardProblem 2. The redshift is defined to be the quantity Job – Xem Xem where Aob and Aem are respectively the wavelengths at which radiation is observed and emitted. 1. Find the corresponding definition in terms of observed and emitted frequencies fob and fem. 2. The observed frequency of radio waves from a distant galaxy is 5 GHz. At the location of galaxy, the frequency is 6 GHz. Calculate the redshift of the galaxy. 3. If the galaxy was 500 Mpc away from the Milky way when the radio waves were emitted. How far away is this galaxy today?arrow_forward
- 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.arrow_forwardPart 5. Radio Waves 11. Describe the range of wavelengths in the Radio Wave portion of the EM spectrum? 12. Compare the benefits and limitations of radio telescopes and optical telescopes. 13. Explain what a quasar is and how it is different from a "regular star.arrow_forwardAstronomy Question: Read the questions slowly and answer with precise and long details about each of the questions. Answer correctly and follow my guidelines for a long and wonderful review after results. Your target/main observable galaxy is the whirlpool galaxy. Target: Whirlpool Galaxy Object Type: Galaxy Distance: 37 million light-years Constellation: Canes Venatici. DO NOT COPY AND PASTE OTHER WORK OR THINGS FROM THE INTERNET, use your own words. In 500 words, please explain the relevance of this object to the physics course material in university andits importance to astronomy. (Some question you may seek to answer are: What beyond the objectitself is learned by studying this class of objects? What sorts of telescopes and observations would beneeded for more detailed, broader reaching studies of this source and objects of its nature?)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Horizons: Exploring the Universe (MindTap Course ...PhysicsISBN:9781305960961Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY