Recent content by Mattofix

Anyone got any ideas?

Homework Statement What is the chemical potential, \mu (in units of \hbar\omega) at T = 0 K of 44 ^{6}Li atoms with spin 1/2 contained in a 3D harmonic potential well (energy levels, \epsilon_{i}=(i+3/2)\hbar\omega with degeneracies g_{i}= 1/2(i+1)(i+2) )? Homework Equations The...

Homework Statement Which of the following states have odd parity? a. 2p m=0 b. 2p m=1 c. 26f m=0 d. 2s The Attempt at a Solution Knowing the wavefunctions for a,b, and d, i think that all of them have odd parity. What about the 26f m=0 state?

f uckyall bitchez - i solved it.

... :(

please...

am i right? is the question wrong? please can someone clarify this.

and my solution:

Here is the question:

I meant xy'' + 2y' + xy = 0... To clarify, from the wikipedia article and looking at the example, 'We can take one element out of the sums that start with k=0 to obtain the sums starting at the same index.' 'We obtain one linearly independent solution by solving the indicial...

Homework Statement xu'' + 2y' + xy = 0 Homework Equations http://en.wikipedia.org/wiki/Frobenius_method The Attempt at a Solution Ok, so i have managed the Frobenius method in the past, but this seems harder... \sum_{n=0}^{\infty} a_n(n+c)(n+c-1)x^{\ n+c-2}...

sorry, i meant the area of a square, ok, so if 2.00 x 10-1 m is its length, would its area be 4.00 x 10-2 m2 or 4.0 x 10-2 m2?

if i have a sqaure of length 0.200m, is its volume 0.040 or 0.0400 mcubed?

Homework Statement Why is the mass absorption coefficient used rather than the linear absorption coefficient? Homework Equations mac=lac/density The Attempt at a Solution is it because mac is independent of physical from?

ok so for t<0 F(t)=0, for t>2 F(t)=1, and for 0<t<1 F(t)= t^{2}/2 and for 1\leqt<2 F(x)= 2t - t^{2}/2 , but I am not being asked for that, I am being asked for 0\leqt\leq2, what is the answer to this?