Hello. I am working on this problem(adsbygoogle = window.adsbygoogle || []).push({});

0=0.002*e^-(0.005/2R)

I am supposed to find to find "R". The only way I know how to do this gives me 0... but I know that it's not the answer. Got any tips?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Natural numbers [please help]

**Physics Forums | Science Articles, Homework Help, Discussion**