Site MapHelpFeedbackProblems
Problems
(See related pages)

1
Suppose a galaxy at a distance of 300 Mpc has a recession speed of 21,000 km/s. If its recession speed has been constant over time, how long ago was the galaxy adjacent to the Milky Way?
2
What is the Hubble time if Hubble's constant is 40 km/s per Mpc?
3
If the Hubble time is 20 billion years, what is the value of Hubble's constant?





To learn more about the book this website supports, please visit its Information Center.
(c)2011 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


AstronomyOnline Learning Center

Home > Chapter 26 > Problems