# Recent content by patrykh18

1. ### Centre of Mass of a Uniform Cuboid -- Show that it is at the Center

Yeah, if I did this question I would naturally distinguish between those two but I never asked myself why that is fundamentally the case.
2. ### Centre of Mass of a Uniform Cuboid -- Show that it is at the Center

Yeah. I solved a lot of integrals. I know I need to distinguish between ##V## the volume and ##V## the integration parameter. I just never asked myself why you fundamentally have to do it.
3. ### Centre of Mass of a Uniform Cuboid -- Show that it is at the Center

Yeah yz is the constant cross area
4. ### Centre of Mass of a Uniform Cuboid -- Show that it is at the Center

Well I am going from x1 to x2 but it's all multiplied by yz
5. ### Centre of Mass of a Uniform Cuboid -- Show that it is at the Center

So, I volunteered to run a seminar to first year students in my college. They got a question like this for homework recently and a lot of them made a mistake in the calculation. I am not asking for help with the question itself because I know how to do it. However, a lot of students made a...
6. ### Numerically simulating stellar pulsation using a "one zone" model

The question is taken from An Introduction to Modern Astrophysics by Carroll and Ostlie. I did manage to do the entire question and plot the relevant graphs but I just wanna to investigate a bit more. For example I wanna look at how the graph would like in the case of the Sun. I don't know what...
7. ### Physics Internship possibilities: Plasma physics

Thank you. I will look into it.
8. ### Plasma physics project ideas

That's alright. I'll definitely keep that in mind when choosing a project. Thank you for the help.
9. ### Plasma physics project ideas

Yes, but I reckoned there would be no point in doing a project on a topic I know cause I'm not learning anything new that way.
10. ### Physics Internship possibilities: Plasma physics

Hi guys. I'm a third year physics student. Next year I'll be in my final year. I'm interested in studying fusion in the future. Unfortunately I have not done plasma physics as part of my degree so I don't know much about it yet. However I'd like to do an internship abroad this summer. Ideally I...
11. ### Plasma physics project ideas

Summary:: I am looking for topics to give a presentation on. Hi everyone. If this is in the wrong section feel free to move it. Anyway, as part of our lab course, on top of doing experiments we will also have to prepare a 20 minute presentation on a chosen topic on physics. This is not like...
12. ### Stress tensor for a parallel plate capacitor

Ah okay, so all the momentum will go straight into the plates. I think I understand now. Thanks a million.
13. ### Stress tensor for a parallel plate capacitor

Okay that is starting to make more sense now. Just need to clarify a few small things. There is no magnetic field in the question. Therefore the Poynting vector is zero everywhere. So the volume integral of our Poynting vector will be zero. Therefore the electromagnetic momentum at any point in...
14. ### Stress tensor for a parallel plate capacitor

Region II is gaining z-component of momentum and region I is losing z-component of momentum

Negative