traveling gaussian wave packet (QM)
look at a proton that starts as a free particle with wave function:
psi(x,0) = Ae^{(xx_0)^2/4a^2}e^{lx}
What is the unit of psi(x,t) and why?
 Not sure on this one..
Show that A = \frac{1}{2pia^2}^\frac{1}{4}
 here do I just need to norm…


by Karaiyar
19032013

in Physics

Re: Leave Chi Alone!
A 16 year old girl (from a country notorious for systematic doping) swimming faster than the world's fastest men? No way ... rofl
Except she didn't swim faster than the world's fastest men.. She beat Lochte in the last 50 m.. Lochte went out hard t…


by Karaiyar
01082012

in Sport

Re: The Arsenal Thread XII
oh well, let's sell him and move on.. See many people supporting this statement, but it has basically forced us to sell him. Proper way to respond would be to show ambition and strengthening the squad, but that's not going to happen so guess it will …


by Karaiyar
04072012

in Football

Re: I love this girl to bits but she comes across as a slut to people
I'd stay away tbh, but if you really like her and you are not bothered by the way she behaves, then you might end up regretting not taking the chance later.


by Karaiyar
26062012

in Relationships

Re: Why Are English Females So Overweight?
Is it really that bad in England? I've been to London once, and I saw a lot of fit girls and the obesity rate didn't seem any worse than other countries tbh.
Personally I'd never go for an overweight girl, not only because of the physical attraction…


by Karaiyar
14062012

in Relationships

Re: The 11/12 NBA season thread
Where did you see that? On NBA.com it says 9.00p ET (so like 2 in UK?)


by Karaiyar
13062012

in Sport

Re: The TSR Tamil Society
What did you think about it? Everyone I saw it with hated it lol, I was the only one who liked it.


by Karaiyar
13062012

in International lounge

Re: Man kills another man when he walks in on him sexually abusing his 4year old dau
Understandable and it would be ridiculous if he got punished for it. I'd lose it if I saw someone do that to one of my cousins, never mind daughter. Even if he intended to kill the sick bastard(which doesn't seem to be the case) it would still be tot…


by Karaiyar
11062012

in News and current affairs

Re: TSR Tennis Society
1 more Rafa!!


by Karaiyar
11062012

in Sport

Re: TSR Tennis Society
http://www.thefirstrow.eu/watch/126278/1/watchdjokovicvsnadal(courtphilippechatrier).html
try this link (not sure if it works though, I'm watching on TV)


by Karaiyar
10062012

in Sport

Re: TSR Tennis Society
Can't wait.. Go Nadal!!


by Karaiyar
10062012

in Sport

Re: Algebraic Fractions
Seems like you did it right.. Can't see where the 13 comes from, must be a typo (typed 1 instead of ).


by Karaiyar
08062012

in Maths

Re: messi cannot be considered one of the best of all time until he wins a WC
No he didn't..


by Karaiyar
28052012

in Football

Re: messi cannot be considered one of the best of all time until he wins a WC
Except Messi is one of the best playmakers in the world already. His passing and vision is exceptional, so while he won't be the same player once he declines physically he has every chance to adapt and be equally effective in a different role.


by Karaiyar
28052012

in Football

Re: messi cannot be considered one of the best of all time until he wins a WC
I'd say their defense was the main factor in them winning the WC.


by Karaiyar
28052012

in Football

Re: messi cannot be considered one of the best of all time until he wins a WC
Cruyff didn't win a WC either, still he's considered one of the best of all time by "everyone". There's no doubt that Messi is already up there with the best, but he'll probably have to perform on elite level(not necessarily win) for Argent…


by Karaiyar
28052012

in Football

Re: Black Girl fancies Nepalese boy Help!!!
So true. Most southeast asian parents I know are so racist, especially towards black people, so it does matter.


by Karaiyar
21052012

in Relationships

Re: Need ClarificationC2 sequence and log question
the inequality sign changes when you divide by a negative.. Log 0.8 will be a negative number, so that's why.


by Karaiyar
17052012

in Maths

matlab interval
Hi. so I need to plot x(t) and y(t) on the same graph over the interval .
x(t) = \frac{3}{2}+\frac{1}{6}sin(3t)\frac{1}{2}+\frac{1}{\sqrt12}sin(\sqrt27t)
y(t) = \frac{3}{2}+\frac{1}{6}sin(3t)+ 1/2 \frac{1}{\sqrt12}sin(\sqrt27t)
so how do I plot…


by Karaiyar
12052012

in Computer Science and ICT

Re: C2 Geometric
This:
4r^24r+1=0


by Karaiyar
12052012

in Maths

Re: Differential equation ++
Thanks! I see what I did wrong now :)


by Karaiyar
10052012

in Maths

Re: Differential equation ++
The other question I need help on:
x''(t)=Ax(t)+c
x(0) ={1 \choose 2} x'(0)={2 \choose 1}
x(t)= {x(t) \choose y(t)}
A = {18, 9 \choose 9,18}
c = {0 \choose 27}
x(t) = u(t)a + v(t)b
find x(t) and y(t)..
Need to solve the other ques…


by Karaiyar
10052012

in Maths

Differential equation ++
Hi.. I've got a few questions I'm stuck on and I'd appreciate some help..
In the previous questions I found out that :
u''(t)a+v''(t)b= (9u(t)+\frac{27}{2})a+(27v(t)\frac{27}{2})b
which gave the equations:
u''(t) +9u(t)=\frac{27}{2}, u(0)…


by Karaiyar
10052012

in Maths

Re: Francois Hollande elected as new French president
Is it true that the highest earners have to pay 75% tax? If so, surely most of them will leave the country?


by Karaiyar
06052012

in News and current affairs

Re: The 11/12 NBA season thread
wow that Clippers comeback was sick!!! Never seen anything like it.


by Karaiyar
30042012

in Sport
