Recent content by graphene

hey, are you made up of barium and beryllium? Cause, you're a total BaBe.

what are these 'something else's ? get rid of them, keep them aside.

all all

You've been given the energy. Use it to find momentum. & then calculate wavelength from the momentum.

yes. yes.

lol. I am by far the SUPREME NERD GOD! All hail the monstrous nerd. 5% scored higher (more nerdy), 0% scored the same, and 95% scored lower (less nerdy).

it is a metal rod. so all the charge would reside on the surface only, none can stay in the bulk. so the field inside the rod is zero.

72hr is insane. i am surprised you can actually sit in front of your comp & make this post. i think I've exceeded 24hr a couple of times and it gets really bad. i feel exhausted but just don't fall asleep or maybe sleep for 2hr and wake up! quite crazy, i don't understand why that happens. on...

waiting to be snatched - by nucleargirl. :)

hey, we share this aspect. i don't quite think people may want to know how long i go w/o a bath or change clothes. :tongue: i live in the tropics. back to the topic, apathy, weekends are great time to make up, if you run short of time during the week. try to enjoy doing the stuff you want...

H_A contains a derivative. H_int contains a polynomial. Do you think they can commute? You can work it out. If H_A and H_int commute, and that the total hamiltonian is their sum, you can find common eigenstates between H_A and H_int. Else, no, you'll have to solve the complete hamiltonian.

31C/15C (= 87F/59F) its getting hot :(

hey nucleargirl, here's my application -

yes, l=0 is the ground state & l=1 is the excited state.

pal, what i told you previously wasnt quite the ideal way to solve it. sry. First, get the force on the third charge to be zero. From this equation, you can find out r. The equation does not involve n. Next consider one of the outer charges. Put in the value of r, and you will have an equation...