× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
6
s
3
3
d
3
s
2
c
2
G
2
y
2
t
2
2
k
2
j
2
Home Q & A Board Science-Related Homework Help Physics
New Topic  
ac_1992 ac_1992
wrote...
Posts: 10
Rep: 0 0
11 years ago
What would be your estimate of the age of the universe if you measured a value for Hubble's constant of Ho = 30 km/s/mly?  You can assume that the expansion rate has remained unchanged during the history of the universe.

Express answer using two significant figures; answer in years.
Read 3032 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
1/Ho is the age of the universe
first a light year is 9.47 x 10^12 km
so 1 million light years = 9.47 x 10^18 km
1/Ho = (9.47 x 10^ 18 km)/(30 km/s) = 3.16 x 10^17 sec

13.7 billion years old

- From search results.
wrote...
#2
Donated
Trusted Member
11 years ago
At the moment, the precise value is ~ 13.7 billion years old.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1211 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 187
  
 463
  
 933
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 300
Previous poll results: Does a gender wage gap exist in America?