Recent content by Looh

Hello! I'm having trouble subtracting two equations, I'm not really sure how to go about it. \\ \frac{4\pi r^3}{3}(\rho_1 - \rho_2)g - 6\pi r\eta v_0 = 0\\ \frac{4\pi r^3}{3}(\rho_1 - \rho_2)g - 6\pi r\eta v_1 - qE = 0 For clarification, there are three different equations used. \\ F_g =...

Ah, yes, I understand now! Many thanks to both of you! :smile:

Hello! My physics teacher gave me an assignment to work out (theoretically) how Millikan's oildrop experiment works. The simple principle of the experiment (as far as I know): E = \frac{F}{Q} F = mg mg = qE \rightarrow q = \frac{mg}{E} However, after reading a bit on Wikipedia it...

Wonderful, I was close to completing my answer to the thread when I accidently closed down the tab and lost all my text. A less elaborate answer will have to suffice, I'm sorry. I actually wouldn't mind learning maths - but I generally feel that the more advanced concepts are, I don't know...

Thank you very much for your suggestions, genericusrnme, I'll check them out immediately! :smile:

Hello! As I'm new on the forum, I might as well start off with an introduction as that may be helpful given the purpose of the thread. I'm 19 years old and I'm currently in high school; my scientific knowledge is quite limited, I do have a basic knowledge of maths reaching up to and around...