I think I'm trying to reconcile quantum mechanics and special relativity . . . or whatever I'm doing I'm pretty confused.
Ok, so the allowed energy states for a particle in a box are
E_n = \frac{\hbar^2 \pi^2}{2 m L^2} n^2 .
This seems to mean, as you increase the length L, the particle's...
I've seen stated in many a physics book that the general case for the speed of sound (for general equations of state p(ρ) ) is given by
c^2 = \frac{\partial p}{\partial \rho}
where p is pressure and ρ is density.
but I can't for the life of me figure out how on Earth to derive that...
How does this relate to the final mass of the neutron star? Does the star accrete another .7 solar mass of matter after the supernova explosion? Or during it at some point?
Also, can anyone point me towards up to date information regarding the current status of neutron star EOS's, like, which...
I meant theoretically... you can prove through the math of GR that the universe flattened by a factor of something like 10^60 after inflation. Observationally of course, we can only tell it's flat to something like 0.5% uncertainty.
Ahh, I think you mean the raw microwave images. The line you see in the middle is just due to the microwaves produced by our own galaxy. These aren't part of the CMB, even though they give off the same wavelengths. That big line in the middle is usually removed using complex statistical...
Out of curiosity, what kind of work/responsibilities did you have? Did you feel like your physics background was a benefit? Looking around at listings from various renewable energy companies, every job I've seen requires either an engineering background or some technical background like...
Im graduating with a BS in physics, where I mostly focused on astrophysics. I'm looking to do something different after I graduate, not planning on grad school, at least for the time being. I'm interested in getting a job somehow related to renewable energy technology, and it would also be a...
Just out of curiosity, what type of undergraduate coursework is usually required to get into a MS engineering program? I'm graduating with a BS in physics, I can't find any info on what schools expect candidates to have taken beforehand...
I'm not sure what you mean by the condensed line... The CMB is very uniform throughout the universe, except for very small local fluctuations called anisotropies. These are used to determine the energy densities of the universe, and from that, the geometry.
Expansion has no direction, the...
The concept of "flat" geometry is a little difficult to picture in 3 dimensions, in fact, it really is impossible. The best one can do is think about the implications of things being flat or curved. For now, let's just think of the universe as having 2 spatial dimensions. So let's just say...
Let's say the Fe core reaches the Chandrasekhar limit. It begins to collapse, and at some point, the very center of the core will reach the neutron degeneracy limit. However, some parts of the core must continue to collapse inwards, until they too reach the neutron degeneracy pressure limit...