Physics Questions, Problems & Solutions : TransWikia.com ~ Page 802

Four-dimensional generalization of the equation $vec{D} = epsilon vec{E}$

In "The electrodynamics of moving dielectrics" (p. 262) Landau and Lifshitz have defined four-tensors and four-vector $F^{mu nu} =begin{pmatrix}0&-E_x&-E_y&-E_zE_x&0&-B_z&B_yE_y&B_z&0&-B_xE_z&-B_y&B_x&0end{pmatrix}$ $H^{mu nu} =...

Asked on 11/09/2020 by Andrej

1 answer

How does a photon released from particle A interacting with particle B, entangle them?

What does a photon carry from its parent particle that when it interacts with another particle, it entangles both the particles? ...

Asked on 11/09/2020 by Viswa Vijeta

1 answer

What do we mean by saying product of operators is a scalar?

The motivation for this question is considering the helicity of a massless particle in relativistic QFT. As the definition for helicity operator $h$$$h=frac{mathbf{J} cdot mathbf{P}}{|mathrm{P}|}$$...

Asked on 11/09/2020

1 answer

Shipping Products to a Low Air Pressure Area

We shipped a container of wet wipes packages by sea and when the container arrived to the port it was unloaded and the packages were verified to be ok. Then,...

Asked on 11/08/2020 by Ady

1 answer

How do I reduce proton number of an atomic nucleus?

I know that one can increase proton number of an atomic nucleus by proton bombardment as Cockroft and Walton bombarded elements with protons and managed to increase the atomic number....

Asked on 11/08/2020 by Elsayed

1 answer

'Physical realizability' in the Symmetrization Postulate

I have two questions about the $Symmetrization Postulate$:In a system with $N$ identical particles, physical states aren't arbitrary states in $V^{otimes n}$. Rather, they're totally symmetric...

Asked on 11/08/2020

1 answer

How does energy remain constant when the NET work done is zero?

If I were to go from X to Y and then back to X, the NET work done by me would be zero. But, how will the energy remain constant?...

Asked on 11/07/2020

3 answer

Two non-interacting particles in a 1D box

I need to find the wave function for two non-interacting particles of mass m_1 and m_2 in 1D infinite box (well) of length $L$, where the positions of...

Asked on 11/07/2020

1 answer

Rotation which diagonalizes the Hamiltonian

I stumbled upon the following question:Given the Hamiltonian of a spin-$1/2$ particle$$hat{H}=epsilonbegin{pmatrix} 0 & -e^{ipi/4} -e^{-ipi/4} & 0 end{pmatrix} = frac{2epsilon}{hbar} vec{S} cdot frac{hat{y}-hat{x}}{sqrt{2}}$$ what is...

Asked on 11/07/2020 by grjj3

2 answer

Full wave rectifier forwarding state

I have a full bridge rectifier with Forward Voltage, per Element $1 mathrm{V}$ at $8 mathrm{A}$, does this mean that between $-1$ and $1...

Asked on 11/07/2020 by Florin Simen

2 answer

Ask a Question

Get help from others!

Physics : Recent Questions and Answers (Page 802)

Ask a Question