Recent content by zellwwf

I am using Lang's book on complex analysis, i am trying to reprove theorem 4.1 which is a simple theorem: Let Compact(S \in \mathbb{C}) \iff Closed(S) \land Bounded(S) I will show my attempt on one direction of the proof only, before even trying the other direction. Assume S is compact Idea...

I agree... so i shouldnt' divide by hbar?

I am using eV, in other words.. i am running a loop from 0.01 ev to 1 ev. Feeding 0.01 to the function. But \Omega_p is defined as \sqrt{f}\omega_p, where omega is in Hz, not eV, as i noted in table 2, in table 2 he says that the value 9.01 is hbar times plasma freq. Should i divide by...

Hello everyone here! See i got my hands on this paper: Optical properties of metallic films for vertical-cavity optoelectronic devices by Rakic et al. A simple google search of the title will give you access to the paper. Now, i am writing the function in MATLAB to calculate the...

Hello PF :) Homework Statement Consider a system of N electrons at temperature T = 0, each having a mass of m, confined to volume V. Find the number of electrons that: a) have momentum p<p_f/2 b) ... Homework Equations The relevant equations can be derived below: but here is a...

Hello again voko, ur my savior! :) Yea, what you are saying makes total sense.. thank you a lot

Hello PF people, Homework Statement In a Compton scattering event, after the collision, the Photon has an energy of 0.12 MeV and the Electron has an energy of 0.04 MeV. Find the following: i) The Wavelength of the photon before the collision. ii) The scattering angle for the photon...

orrite, i will try again with S being our normal rf and S' the fixed rotated and S'' the moving rotated

if i don't derive it a couple of times myself, i won't memorize it, and i won't know "what" it means, ... i was taught physics 1 by a great professor who didn't use except two formulas (f=ma, and a=+- 9.8) we had to derive everything else.. i remember he said once when we told him it was hard...

I think I've done this question, here is my latest attempt, i also have some "True/False" questions, that are there i made them up... because i got confused, and i need some clarification. they are labeled i, ii, iii , iv (i think i forgot iv but it's the last thing i wrote :P )

meanwhile, i know it's a lot to ask from you, but can you check this? (i really need to thank you for all this man, here's a cookie!) it's about velocity transf https://www.physicsforums.com/showthread.php?t=640054

then i think i am done, give me 5 mins to copy the stuff to my "special" :P paper and attach as PDF, i will include some other inference i had on V, please tell me if they are true or false.. i will be more specific in the pdf

since ur already here... should i get the lorentz transformation of V, too? becuse without it it seems easier :P ... but i really think that i need the transformation of v, since v acts on both X and Y.. (in S) it's only in X' in S'

Ive done the deduction and i got this instead: x' = xcosθ + ysinθ y' = ycosθ - xsinθ aka, y' was -1 your y'. I am currently almost done with their respective lorentz transformation... post it shortly afterwards

I wish i can think that creatively by now :P