Top Posters
Since Sunday
p
4
h
4
c
4
d
3
3
c
3
t
3
u
3
A
3
B
3
j
3
s
3
New Topic  
staedtler staedtler
wrote...
Posts: 2716
Rep: 0 0
7 years ago
Suppose a galaxy is 400 million pc from the Earth. What is the recessional velocity of this galaxy? Assume Hubble's constant to be 80 km/s per Mpc.
   A)  5 km/s    B)  200,000 km/s    C)  32,000 km/s    D)  5 million km/s
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 129 times
2 Replies
Replies
Answer verified by a subject expert
hyponoticahyponotica
wrote...
Top Poster
Posts: 1396
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

staedtler Author
wrote...
7 years ago
On behalf of my study group and I, thank you
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1172 People Browsing
Related Images
  
 1477
  
 1144
  
 1060
Your Opinion
Which country would you like to visit for its food?
Votes: 261