Hello.

first of all i would like to thank you for the great videos. i'm in the middle of a B.A degree in Biology in Israel and your website saved me time and again.

I wanted to ask you if you would you please be able to would on the Charge and electric force (Coulomb's law) topic more specifically on How to solve more complicated questions. i cant wrap my head around the whole idea of physics and the mechanics videos helped me allot. 

and one more suggestion: I don't really know if American students take an Physical Chemistry courses' but here we do and i would like to know if you have some videos on the subject. if you do have some videos it will be a good idea to collect them under that name. and if you don't please consider uploading some. 

thank you again you are doing an incredible work.