Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25, Problem 17Q
To determine
The reason due to which astronmers conisder the Hubble constant as the “Hubble variable”.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What would be the Hubble constant if the universe were 18 billion years old?
Explain how the Hubble constant, H0, can be used to make an estimate for the age of the Universe. Use the value of H0 = 0.07×103 kms-1/Mpc to estimate the Universe’s age. Comment on the significance of your answer.
What is the most likely range of values for Hubble’s constant? What are the uncertainties in its value?
Chapter 25 Solutions
Universe
Ch. 25 - Prob. 1CCCh. 25 - Prob. 2CCCh. 25 - Prob. 3CCCh. 25 - Prob. 4CCCh. 25 - Prob. 5CCCh. 25 - Prob. 6CCCh. 25 - Prob. 7CCCh. 25 - Prob. 8CCCh. 25 - Prob. 9CCCh. 25 - Prob. 10CC
Ch. 25 - Prob. 11CCCh. 25 - Prob. 12CCCh. 25 - Prob. 13CCCh. 25 - Prob. 14CCCh. 25 - Prob. 15CCCh. 25 - Prob. 1CLCCh. 25 - Prob. 2CLCCh. 25 - Prob. 3CLCCh. 25 - Prob. 4CLCCh. 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. 10QCh. 25 - Prob. 11QCh. 25 - Prob. 12QCh. 25 - Prob. 13QCh. 25 - Prob. 14QCh. 25 - Prob. 15QCh. 25 - Prob. 16QCh. 25 - Prob. 17QCh. 25 - Prob. 18QCh. 25 - Prob. 19QCh. 25 - Prob. 20QCh. 25 - Prob. 21QCh. 25 - Prob. 22QCh. 25 - Prob. 23QCh. 25 - Prob. 24QCh. 25 - Prob. 25QCh. 25 - Prob. 26QCh. 25 - Prob. 27QCh. 25 - Prob. 28QCh. 25 - Prob. 29QCh. 25 - Prob. 30QCh. 25 - Prob. 31QCh. 25 - Prob. 32QCh. 25 - Prob. 33QCh. 25 - Prob. 34QCh. 25 - Prob. 35QCh. 25 - Prob. 36QCh. 25 - Prob. 37QCh. 25 - Prob. 38QCh. 25 - Prob. 39QCh. 25 - Prob. 40QCh. 25 - Prob. 41QCh. 25 - Prob. 42QCh. 25 - Prob. 43QCh. 25 - Prob. 44QCh. 25 - Prob. 45QCh. 25 - Prob. 46QCh. 25 - Prob. 47QCh. 25 - Prob. 48QCh. 25 - Prob. 49QCh. 25 - Prob. 50QCh. 25 - Prob. 51QCh. 25 - Prob. 52QCh. 25 - Prob. 53QCh. 25 - Prob. 54QCh. 25 - Prob. 55Q
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
- A new astronomical measurement suggests that the Hubble constant is 51 kilometers per second per Megaparsec. If this measurement is correct, what would the Hubble time be in units of years? Is this a plausible value based on other astronomical evidence? Why or why not?arrow_forwardThe Andromeda Galaxy is a member of the Local Group of galaxies. It is approaching us. Does this mean that the Hubble Law is wrong? Why or why not? Explain.arrow_forwardIf you find that the Hubble constant is double what we currently believe, how does this affect the calculated age of the universe? Group of answer choices It decreased it by a factor of four. It cuts it in half. It doubles it. It increases it by a factor of four.arrow_forward
- There are 3 parts to this question and I need three different answers! I need the answer to part 1 in km/s/Mpc, I need to know what the hubble time is in years (I already tried 14 billion and that was incorrect), and I need to know part 3 in years. Thank you!arrow_forwardWhat was the maximum age of the universe predicted by Hubble's first estimate of the Hubble constant?arrow_forwardWhat is Hubble constant?arrow_forward
- Using our example from the previous unit, let's try to determine the Hubble time for this example universe. You were given that a good representative galaxy receded at a speed of 4000 km/s and was found to be 20 Mpc away. With that in mind, what would the age of that universe be in years (aka what is that universe's Hubble time)? Go ahead and take the number of kilometers per Mpc to be approximately 3.1*10^19 km/Mpc. While this problem may look scary at first, this is really just bringing you full circle to one of the unit conversion problems you encountered at the beginning of this course.arrow_forwardHow does Hubble’s Constant depend on time? How about distance? (In what sense is it constant?arrow_forwardSupposed that we were to discover that all galaxies are actually twice as far away as we think. How would this affect Hubble’s constant?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage LearningAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax