A community for students.
Here's the question you clicked on:
 0 viewing
Arihangdu
 one year ago
Iron  59 has a half life of 45.1 ayes. How old is an iron nail if the Fe 59 content is 25% that of a new sample of iron ? Please show me all the calculation to understand.
Arihangdu
 one year ago
Iron  59 has a half life of 45.1 ayes. How old is an iron nail if the Fe 59 content is 25% that of a new sample of iron ? Please show me all the calculation to understand.

This Question is Closed

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0Please help me I will give medals and fans.

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1amount left = original amount*(1/2)^(total time/length of halflife) so plugging in our numbers, we get: .25 = (1/2)^(t/45.1) solve for t

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0How to solve please help me

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1.25 = (1/2)^2 so (1/2)^2 = (1/2)^(t/45.1) 2 = t/45.1 solve for t

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0Any formula we need to use here please?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.1no, that's it, t = 90.2 years...

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0A=Ao *m this not a decays formula ?or I confused !,

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0Ok thank you so much for helping

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0Please receive my appreciation.

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0Thanks for helping me.

Arihangdu
 one year ago
Best ResponseYou've already chosen the best response.0I don't know how you do this steps .25= 1/2^t/45.1 1/2^2=1/2)^t/45.1
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.