Recent content by belleamie

Hi there, i need help in a couple of questions that I'm just stumped one of them : A) use induction to show that [ x (hat)^n, p(hat) sub "x" ] = i (hbar)n x(hat)^(n-1) - so far I've figured out this equation is in relation to solve the above eq, but I'm not entirely sure how to connect the...

PLEASE help asap with quantum physics! Hi there, i need help in a couple of questions that I'm just stumped one of them : A) use induction to show that [ x (hat)^n, p(hat) sub "x" ] = i (hbar)n x(hat)^(n-1) - so far I've figured out this equation is in relation to solve the above eq...

Please help 1) The mechanism which powers the clock (using a harmonic oscillator to keep time with friction) Since the clock has friction the oscillation amplitude decreases in time. If the oscillation amp is unity at t=0 what will the amp be after 10 sec? I believe we need to use the...

Does anyone know how to solves these, hints anything? I was able to do #1,2 and got lost at 3 and without 3 I couldn't do 4 and then i couldn't do 5 :( PLease help #3 in special relativity the dynamics are different. In particular, the momentum p is no longer mv. Failure to remeber this...

HI there, I was assigned 7 homework problems but there were three I didnt know how to answer... please help, any hints on how to start would be appreciated. #3 the state of spin-1/2 particle that is spin up along the axis whose direction is specified by the unit vector n=sin (theta) cos...

Hi, I think my brain froze and I'm not seeing it the problem is the momentum is defined as p=mv=m(dx/dt) express the kinetic energy in terms of m and p ~ Now I know kinetic = T= (1/2)mv^2 and that P=mv I figured that it must be t= (1/2)p^2 till i realized that I'm missing in terms...

A) Given ((mdx^2)/(dt^2))=F(x) prove conservation of energy

Thanks a bunch i understand #1, 2a&b now, can anyone help me on the 3rd question?

Can anyone help me with the review problems in my image please?

I'm not sure how to write it in that form

Hmm the problem was a review question for my quantum 1 class which is why i posted it here. Since I wasnt sure exactly where in my book it referred to it. I'm taken up to linear algebra a couple yrs ago. I cut and pasted thequestion as it was typed in my notes...

not sure how to solve this problem, Any suggestions or examples?

Can anyone help me with the review problems in my image please?

I'm not so sure how to regroup the i's? do you mean figure out what sin x identity is and cos x idenity and plus it in, in the 2! group and the the other for the 3! group?

Help on proofs? pleasee Hi there, I was given these proofs to do for my quantum class. proofs are the worst for me, I know it work and i have and idea how it starts which i wrote in the image but I can't seem to figure out the inbetweens. I've attach the images, if anyone can help me that...