× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Psychology Neuroscience and Mental Health
New Topic  
Omarlate Omarlate
wrote...
Go to Answer
Posts: 500
Rep: 0 0
6 years ago
44 g of petrified wood was found in a petrified forest. A sample showed a 14C activity of 100 decays/minute. How long has the tree been dead (in years)? (The half-life of carbon-14 is 5730 years and freshly cut wood contains 6.5  1010 atoms of 14C per gram.)
 a. 12 300
  b. 15 600
  c. 8 500
  d. 4 700
  e. 2 400
Read 319 times
1 Reply
Replies
Answer verified by a subject expert
Tanzious02Tanzious02
wrote...
#1
Posts: 382
Rep: 6 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free

Related Topics

Omarlate Author
wrote...

6 years ago
Correct Slight Smile TY
jasonbourne
wrote...

Yesterday
This site is awesome
bahajo
wrote...

2 hours ago
Thanks
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1387 People Browsing
 131 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 281
  
 354
  
 923
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4
Previous poll results: Who's your favorite biologist?