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Can a normal force do work? Note: work = $Fdcos(theta)$, where $F$ is the magnitude of the force, $d$ is the magnitude of the displacement, and $theta$ is the angle...
Asked on 08/12/2021
4 answerFor Minkowskian space-time $M$, the principal bundle for electromagnetism is $(M times U(1), M, proj_{1}, U(1))$. I imagine there is a global gauge potential (since I can choose...
Asked on 08/12/2021
0 answerIn most explanations of how antennas work they say that because of kinks in the electric field of an antenna meets at one point and detaches... I looked up reasons...
Asked on 08/12/2021
2 answerI understand the symmetry structure of the 3D isotropic harmonic oscillator $H = frac{mathbf{P}^2}{2mu} + frac{1}{2}momega^2mathbf{X}^2$ as follows. The energy levels are $E_N = hslash omega (N +...
Asked on 08/12/2021 by Yegreg
1 answerIf I want to calculate the underwater pressure I use this formula: $ P = rho g h$ But is this valid for any altitude? Is it the same...
Asked on 08/12/2021 by SAR_90
2 answerI've recently become interested in Nikola Tesla's resonant inductive coupling method of wireless power transfer. I saw an experiment online and the resonant coils seemed to be on axis, or...
Asked on 08/12/2021
2 answerAccording to photoelectric effect we consider light to be particles to justify the threshold wavelength in light.It says that the energy of electron emitted depends on wavelength of light...
Asked on 08/12/2021
1 answerThroughout the literature Wormholes are typically constructed by "Minkowski" or "Schwarzschild Surgery" (see e.g. Visser, Lorentzian Wormholes...), i.e. under quite simple and/or highly symmetric circumstances. In the former case, regions...
Asked on 08/11/2021 by Julian Moore
1 answerIs it possible that for an extremely high inductive coil the oscillation paths for the electrons are so small that they can 'live' between atoms of the copper lattice without...
Asked on 08/11/2021
0 answerThe gravitational force does not affect the speed of light rather affects the frequency of light (hence light changes colors, red to blue and vice-versa).I know this has been verified...
Asked on 08/11/2021 by user92340
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