Recent content by sz0

Helping others understand is the best in the long run. If you help by teaching how to solve the problems, it will probably increase your own understanding a lot. And if these people are after the solutions, then it will show on the exams either way. It is also just a good thing to be helpful...

I am by means an expert but, what Gaus law does is to collect all that flows through a surface. If you don't totally enclose the charge there will be flow going out that you are not calculating.

Hi, since the trigonometric functions are periodic there is more than one answer to what 3x can equal to sole your equation. sin(v) = 1 implies v = pi/2 , but but pi/2 + 2*pi or pi/2 + 4*pi will do as well since it is 2pi-preiodic. k represents any number, that is k = 0,+-1,+-2,+-3 etc. So...

Fantastic, thanks for your help.

Ok I did, there was nothing about it in my textbook i think so becuse of different notation online it was a bit slow but i hope i got this right. ψ(X) = Ksin(3πx/L)cos(πx/L) = C[sin(2πx/L)+sin(4π/L)] is what I have after I solve 1= ∫|ψ|^2 dx [0,L] → K = 2/√L . For simplicity i introduce C =...

I haven't solved it, but these are my new trys, am I doing anything right ? I start with what i think is a trigidentity, ψ(X) = Ksin(\frac{3πx}{L})cos(\frac{πx}{L}) = \frac{K}{2}[sin(\frac{2πx}{L})+sin(\frac{4πx}{L})] , solving K from this should be trivial, but I will wait with it for now...

Thank you, I will work on that this night and read up on how to do it, hopefully I will make it.

Homework Statement A particle with mass m is trapped inside the infinite potential well: 0<x<L : U(x) = 0 otherwise: U(x) = ∞ ψ(x,t=0) = Ksin(3∏x/L)cos(∏x/L) What energies can be measured from this system, what are the probabilities for these energies ? Homework Equations Schrödinger...

First; thank you for looking at my problems. But I did these 2 problems + 2 other and was told 3 out of 4 were wrong so both solutions can't be correct.

Homework Statement 1) I have five lenses with f=25 placed at distance 50 from each other, what is the focal length of this system? 2) A light source is placed in the focal point of a lens with f=50, at d=600 a lens with f=400 is placed, at the focal point of the second lens the image is...

That you, that was just what i needed to hear to just do it.

Hello, i seem to have a conundrum on my hands that i hope the kind people on here might be able to give me some tips about how to handle. I am currecntly working on my bachelor degree in physics, and have one more year before I'm finnished with that and will go on to my masters(and finally...