Recent content by subny

hi i am a MS physics student. We are following the goldstein book for classical mech and have exams next week. Does anyone know of any good (easy - "how to do it" procedure explained) notes or pdf hand outs on the Hamilton Jacobi eq and the action angle variables. I do not have time to study...

hi deoes anyone know any online resource for proofs of Dirac delta function identities and confirming which representations are indeed DD functions Thanks a lot.

i guess australia only has curtin, james cook, western australia and swinburne !

any new inputs or views?

@ Eri - it does not have to be radio astronomy - as long as it some kind of observational astronomy @chiro - I emails the astronomers there - any other names you may want to share are also welcome.

Hi I am a Physics masters student from India in a college in Texas. I want to pursue a PhD in Astronomy (observational/radio) Australia. I have heard Australia is very good at obs astronomy - however google searches are revealing a lot about the telescopes and other facilities there but...

Hi I am a Physics masters student from India in a college in Texas. I want to pursue a PhD in Astronomy (observational/radio) Australia. I have heard Australia is very good at obs astronomy - however google searches are revealing a lot about the telescopes and other facilities there...

hmm... any other hints or suggestions. Thanks

hi so i am confused now - does the reference already have the soln - i don't even see it !

you mean this - http://en.wikipedia.org/wiki/Exponential_function#Formal_definition ok so how to use that here

yes thanks i could do it afterall

Homework Statement Homework Equations i think the most relevant equations would be some commutator algebra theorems i do not know of ! The Attempt at a Solution

Homework Statement A quantum particle, i.e. a particle obeying Schrödinger equation and moving in one dimension experiences a potential ˆV (x). In a stationary state of this system show that ⟨x∂/∂x(ˆV(x)⟩ = ⟨ˆp2/2m⟩ Hint: Consider the time dependence of ⟨ˆxˆp⟩. Homework Equations...

no i do not. but for the sum i used v= q.integration (Edr)

F=qE how to get the PE from this ??