× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
r
4
L
4
3
d
3
M
3
l
3
V
3
s
3
d
3
a
3
g
3
j
3
New Topic  
dtimmons95 dtimmons95
wrote...
Posts: 241
7 years ago
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Read 175 times
1 Reply

Related Topics

Replies
wrote...
Educator
7 years ago
Solution provided below:

New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1903 People Browsing
Related Images
  
 1526
  
 4491
  
 236
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 436