- #1
Formslip
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Homework Statement
[PLAIN]http://img168.imageshack.us/img168/6892/img002pd.jpg
this is the first half of a test we had last friday.
Homework Equations
[tex]\phi[/tex](k) = [tex]\frac{1}{2\pi}[/tex][tex]\int[/tex][tex]\Psi[/tex](x,0)e[tex]^{-ikx}[/tex]dx
that looks a little funky but i think you understand what I am trying to say.
The Attempt at a Solution
a) so for the first part i know youre supposed to normalize to solve for A so i tried with [tex]\int[/tex][tex]^{\infty}_{0}[/tex]([tex]\Psi[/tex])[tex]^{2}[/tex]=1
[PLAIN]http://img258.imageshack.us/img258/7572/picture001b.jpg
and its the same thing when you do it for x<0. assuming that's right the next part
b) is just a matter of plugging in and chugging.
[PLAIN]http://img259.imageshack.us/img259/7357/picture003ivl.jpg
which I've probly chugged incorrectly, doesn't seem like there should be an i in there..
anyway
c) i can do np once i have the correct [tex]\Psi[/tex]
d) i don't know what this is really asking, but its not as important as figuring out a & b
e) i have no idea how to do this. any help appreciated.
tl;dr basically i kindof understand a) and b) though i think i got em wrong, and i do not understand e) at all
this is my first post here, i hope I've done everything I am supposed to.
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