Top Posters
Since Sunday
A
6
j
6
c
5
m
5
C
5
d
5
s
5
n
4
i
4
d
4
d
4
J
4
New Topic  
Tsync Tsync
wrote...
Posts: 3450
Rep: 8 0
8 years ago
A 20 solar mass star will stay on the main sequence for 10 million years, yet its iron core can exist for only a:
A) century.      B) day.       C) year.      D) month.      E) week.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 174 times
3 Replies
Minoring in physics
Replies
Answer verified by a subject expert
RatatouilleRatatouille
wrote...
Top Poster
Posts: 3710
8 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

Tsync Author
wrote...
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
wrote...
8 years ago
Happy to help Slight Smile
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  843 People Browsing
 106 Signed Up Today
Related Images
  
 253
  
 906
  
 348