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In the book 'An introduction to science of cosmology' by Raine and Thomas, they have two equations$$frac{Delta T}{T} = frac{v}{c}costheta'qquad (4.14)$$$$T = (3.372±0.014)×10^{-3}costheta' K qquad...
Asked on 07/02/2021 by user89083
2 answerI'm wondering whether I correctly understand the increase of the Hall resistivity rho_xy in Quantum Hall effect. As you can see the graph, ...
Asked on 07/02/2021 by phys_gur
0 answerRecently, I was doing my homework and I found out that Torque can be calculated using $tau = rF$.This means the units of torque are Newton meters. Work...
Asked on 07/02/2021 by General Stubbs
10 answerI can understand little bit what coherence means and little bit what is polarisation means. The question is there a way to achieve coherence by polarisation? Specifically consider a source...
Asked on 07/02/2021 by Creator
0 answerConsider a space aircraft. During its propulsion, I believe a lot of heat is transmitted to the aircraft by simple contact with the motor. But in space, there is no...
Asked on 07/02/2021
0 answerI am a high school student and recently learned about linear, circular and oscillation motion. I also read that Newton laws of motion fails at quantum level. Now, I am...
Asked on 07/02/2021
1 answerPhotons move on null geodesics and the equation of motion on equatorial plane after some algebra can be written as $$e^{nu}dot{t}^2-e^{-nu}dot{r}^2-r^2dot{phi}^2 = 0$$ $phi =0$ for the...
Asked on 07/02/2021
2 answerHow do I determine variables g (reciprocal lattice vector for diamond) and Omega (Unit Vector in the direction of X-ray emission) ? ...
Asked on 07/02/2021 by Zeno Chen
0 answerSo, for example, my notes go through fermi theory, in which case the interactions are:$$G_F j^dagger_mu j^mu$$where$$j_mu = barνγ_µe + bar pγ_µn...
Asked on 07/02/2021
0 answerWhat is the physical meaning of saying that a VEV is greater than zero? Are we saying that the energy of the ground state is greater than zero, that is...
Asked on 07/02/2021
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