Tuesday
September 30, 2014

Homework Help: Calculus

Posted by Anonymous on Thursday, June 17, 2010 at 2:29pm.

Radius decays at a rate of that is proportional to its mass, and has a half-life of 1590 years. If 20 g of radium is present initially, how long will it take for 90% of this mass to decay?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calculus - The half-life of Radium-226 is 1590 years. If a sample contains 100 ...
Math - Exponential Decay - Radium decays exponentially. Its half-life is 1,690 ...
Chem 3A - please help me with this chemistry problem. Half-Life A radium-226 ...
Science - Radium has a half-life of 1620 years and decays into radon, which has...
Chemistry - Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half ...
chemistry - A radium-226 sample initially contains 0.112mol. How much radium-226...
nuclear chem - i need help solving this. Can you guys show me how it's done. ...
calculus - The rate at which an amount of a radioactive substance decays is ...
Math - A radioactive substance decays according to the formula Q(t) = Q0e−...
Math - A radioactive substance decays according to the formula Q(t) = Q0e−...

Search
Members