Saturday

January 31, 2015

January 31, 2015

Posted by **Anonymous** on Friday, December 2, 2011 at 2:32am.

- physics -
**drwls**, Friday, December 2, 2011 at 2:42am(90 g)* 2^(-70/1690)

= 90g * 0.9717 = 87.5 g

**Answer this Question**

**Related Questions**

Math - Exponential Decay - Radium decays exponentially. Its half-life is 1,690 ...

MATHS - please help me ...Experiments show that radium at rate proportional to ...

MATHS - experiments show that radium disintegrates at a rate proportional to the...

Chem 3A - please help me with this chemistry problem. Half-Life A radium-226 ...

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...

physics - The half life period of radium is 1600 years.In how many years 1 gram ...

Science - If a 20 gram sample of a radioactive substance has a half-life of 6000...

Math - In 1976 a research hospital bought half a gram of radium for cancer ...

Math - In 1976 a research hospital bought half a gram of radium for cancer ...