Recent content by fu11meta1

Is anyone familiar with Atlas 2 for mathematica to calculate the Riemann Tensor, Ricci Tensor, and scalar I have a metric that I need to calculate these things for. Can anyone help? I'm not too up on Mathematica either.

Nevermind. I have solved it!

Homework Statement Consider a perfect fluid in a static, circularly symmetric (2+1)-dimensional spacetime. Derive the analogue of the Tolman-Oppenheimer-Volkov (TOV) equation for (2+1)-dimensions Homework Equations Schwarzschild metric The Attempt at a Solution Okay. I'm trying to think...

I seem to have forgotten notation. -.- I wasn't even thinking of the covariant derivative. Thanks haha

Homework Statement How do you find the killing vectors for Minkowski space(or from any metric as well)? Homework EquationsThe Attempt at a Solution I'm new to GR and I'm going through Carroll's book. I've been alright so far but for some reason I just don't understand what's going on here...

I see! Thanks for your help. I read some more into it and found that it is the uncertainty. As for #2 it 135 MeV(pion). for ΔE

Homework Statement These questions are out of Modern Physics by Tipler. I feel like I'm close to the answer but missing something small. #1: A ladybug 5mm in diameter with a mass of 1 mg being viewed through a low power magnifier with a calibrated reticule is observed to be stationary with an...

A map h: = T.(M) ---> T.(M) is defined by h(X) = X + g(U,X)U where U ε T.(M) is a fixed vector with g(U,U) = -1. i: Give an expression for the components h^i (sub) j (This is "h" with a superscript i and subscript j) of h regarded as a tensor type (1,1) ii: Prove that h^2 = h. Interpret h...

Hey all! I'm taking a higher level electrodynamics course this semester and next. We are using Introduction to Electrodynamics fourth edition by Griffiths. I was just wondering where I could get some practice problems outside of the book to work and boost my skills. Thanks

Thanks! This is definitely helpful. I've heard a lot of physics merges with computer science. I'm not that big of a fan of computer science or coding, however I do know how to use some languages. One reason why I don't want to continue doing the first project is because I feel it does not relate...

@WannabeNewton I have not haha. Which is the biggest problem, I understand. I don't believe my university has an undergrad GR course though

Hey all! I am currently doing a computer science project for a scientific collaboration at an REU this summer. I am a physics student and I plan to be a researcher one day. I really do not want to continue this project for two main reasons: I simply do not know the computer science...

Thank you, but I don't believe the problem is that in depth. Our course isn't very mathematically heavy , so it's usually basic formulas and whatnot. I just can't think of what to do -.-

Homework Statement Consider a membrane which is permeable to a singly charged ionic species. If the concentration on one side is 25 times that of the other, what is the electric potential required to maintain a net flux of zero at 37C? Homework Equations I'm not sure: U = KQq/r flux...

This helps some! Thank you! I'm also looking for maybe a measure of it's luminosity and some other information