Find answers to your questions about Physics or help others by answering their Physics questions.
Given a Quantum Hamiltonian: $$hat{H}=ax^2+bp^2$$ It does not commute with either $x$ or $p$. Suppose we have a Hamiltonian :$$H = k hat{p}hat{x}$$ why do we...
Asked on 01/23/2021 by Qbuoy
2 answerThank you all for so much help as I work through Zee's QFT book. Here I finally have a question about physics instead of math. Zee makes several comments...
Asked on 01/23/2021
1 answerHow can I explain to my 17 year old pupils that the observed redshift of distant galaxies cannot be interpreted as a doppler effect and inescapably leads to the conclusion...
Asked on 01/23/2021
6 answerIf I have some solid material like biomass and incinerate it at 1000 Celsius degrees for 15 minutes in an oxidized atmosphere within an incineration oven. As an output it...
Asked on 01/22/2021 by xtyper
1 answerI am confused by something I have seen discussed but not with full clarity: it has to do with understanding antenna behavior at the quantum level for its own sake...
Asked on 01/22/2021 by shawarma_king
4 answerLet's say I have an open container of liquid. According to what I have read, to get the liquid to boil, the vapour pressure has to equal the atmospheric pressure...
Asked on 01/22/2021 by user204786
2 answerI am trying to understand the calculations of the latest Charles Dalang's paper "Scalar and Tensor Gravitational Waves", arXiv:2009.11827. Since I just learned basic general relativity, I...
Asked on 01/22/2021 by Adika
1 answerI physics books and such, I understand why they show atoms as spheres because they have the electron cloud. But why are protons, neutrons, and electrons spheres? I guess people...
Asked on 01/22/2021
2 answerMaxwell's equations define the speed of light in a given medium at a given point through the equation:$$frac{partial^2E}{partial t^2}=muepsilonnabla^2E$$ so according to it, the speed of light in...
Asked on 01/22/2021
1 answerAs we know, the scalar spectrum index and the ratio of tensor-to-scalar in the slow-roll method are obtained with a certain relation according to the parameters of the slow-roll. Now...
Asked on 01/22/2021
0 answerGet help from others!
Recent Answers
Recent Questions
© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP