Recent content by calculo2718

thank you! this was helpful.

I am trying to solve problems where I calculate work do to force along paths in cylindrical and spherical coordinates. I can do almost by rote the problems in Cartesian: given a force ##\vec{F} = f(x,y,z)\hat{x} + g(x,y,z)\hat{y}+ h(x,y,z)\hat{z}## I can parametricize my some curve ##\gamma...

Thanks so much for the useful information!

Hi, after uni-assist forwarded your application to leipzig, did you do anything? Or did you just continue waiting to receive an acceptance? thanks!

I can't seem to edit the post so I am re-posting here. Homework Statement The momentum carried by an electromagnetic field is $$\vec{P}(\vec{x}, t) = \frac{1}{4\pi c} \int d\vec{x}\vec{E}(\vec{x},t) \times \vec{B}(\vec{x},t)$$ show that for a finite field extension $$\vec{J}(\vec{x}, t) =...

Homework Statement The momentum carried by an electromagnetic field is [;\vec{P}(\vec{x}, t) = \frac{1}{4\pi c} \int d\vec{x}\vec{E}(\vec{x},t) \times \vec{B}(\vec{x},t);] show that for a finite field extension [;\vec{J}(\vec{x}, t) = \frac{1}{4\pi c}\int -i...

It's 75 euros plus the cost to ship the documents to Germany. In America, FedEx charged me a little over $57. Just so you know application deadline is September 15 for the 2015 winter semester.

Yes, you learned W = Fx in high school but that was assuming F was constant, I shouldn't have said assuming F is constant, but in my defense it was nearly 5 in the morning when I posted. Think about it like this, force is a function of position(not necessarily constant), area is also a...

Defining work to be [;W = \int F dx;] and pressure to be [;P = \frac{F}{A};] We can substitute F in the in the work equation (assuming constant force) and obtain [;W = \int PA dx;] which is effectively [;W = \int PdV;].

Hi Guys, I was wondering if anyone who has applied for the winter semester for IPSP has had their uni-assit application processed? I live in america and here university starts at the end of august, IPSP says on their website that they usually send decisions around that time. I'm afraid that...

A supplemental text to Shankar or to Sakurai?

Cool, thanks.

Hi Guys, I am taking a quantum mechanics course next semester that follows Sakurai's book. I was wondering if there was some mathematics I should study over break in preparation for this course. I have taken so far: Calc 1-3 ODEs PDEs Linear Algebra An elementary course in group theory Ill...

Yes, there are. Those courses are the advanced courses that I mentioned in my post. They require all the core classes as pre-reqs but even if I could take them, they wouldn't count toward completion of my major. All required elective courses have been satisfied by my linear algebra course...

CM and E&M are only offered in the fall. QM and Stat mechanics are offered in the Spring, but it conflicted with modern physics(which is a pre-req for both courses). The undergrad director for physics said and I quote "Will not tolerate a time conflict. you cannot enroll in the course" Instead...