Friday

August 29, 2014

August 29, 2014

Posted by **andrew** on Sunday, June 3, 2012 at 1:43am.

- physics -
**drwls**, Sunday, June 3, 2012 at 10:58amLet T be the half life, in days.

(1/2)^(1.84/T) = 0.858

Take logs of both sides.

(1.84/T)*(-0.30103) = -0.06651

1.84/T = 0.22095

T = 8.33 days

**Related Questions**

chemistry - The half-life for the radioactive decay of calcium-47 is 4.5 days.If...

Algebra 2 help... - A half life of a certain radioactive is 36 days. An initial ...

Physics - University students, studying the activity of a particular radioactive...

Physics 30 - The activity of a sample of a radioactive isotope is 1800Bq. If ...

physics - Suppose 32000 radioactive nuclei are in a sample. About how many ...

Radioactivity - Beryllium-7 has a half-life of 53 D. A sample was observed for ...

Nuclear Physics - An investigator receives Co-60 (5.27 year half life) for use ...

math - You have just isolated a new radioactive element. If you can determine ...

College Algebra - The half-life of a radioactive material is about 34.6 years. ...

Physical Science - A gram of radioactive material has a half-life of one year. ...