Friday

July 25, 2014

July 25, 2014

Posted by **David** on Tuesday, August 28, 2012 at 6:58pm.

- Math -
**bobpursley**, Tuesday, August 28, 2012 at 7:04pm.6=e^-.603 (5sec/th)

solve for thalflife.

ln.6=-.693*5/th

th=???

**Related Questions**

chm - An unknown radioactive substance has a half-life of 3.20 . If 34.8 of the ...

math - A researchr assistant made 160mg of a radioactive, and found that there ...

physics - The half-life of a certain radioactive isotope is 32 hours.What ...

math - an extremely volatile substance, Ofnetite, has a half-life of 25 minutes...

calculus - The rate at which an amount of a radioactive substance decays is ...

Math-Exponential Decay - A lab technician had 58 grams of a radioactive ...

linear/exponential - This question involves the half-life formula. In this ...

math - A recent survey shows that the average man will spend 141,288 hours ...

Science - Radioactive substance decays so that after t years, the amount ...

Calculus Help Please!!! - A radioactive substance has a half-life of 4 days. ...