Recent content by 13characters

step one, draw the question. apply principle of superposition; consider one charge at a time, then sum individual forces. Part A think about which force vectors are going to cancel at the origin. Part B use the result from part A :D Part C is pretty vanilla. opposites attract.

I'm going to parasite on this thread, because it deals with a similar topic. the way i approached it was use the electric field equation, E = \frac{1}{4\piε} \int \frac{1}{|r|^2} \widehat{r}dq for which i substituted \widehat{r} = cosψ = \frac{z - Rcos\theta}{r} and for |r| =...

i get it now. thanks.

That's what i figures too after some digging in the kinetics section of my chem book cheers. i still don't get what <x^2> means. What i found was "the average of the square of molecular speeds" but i still don't entirely get why its operator is X^2. edit: Also is there a ways to...

Every quantum mechanical operator has an observable in classical mechanics <x> - position ... <x^2> - ? <p^2> - ? What is the meaning on these expectation values? v^2 = <x^2> - <x>^2 What is the meaning of this? edit: It looks to me like uncertainty in position. Is it the average...