Physics Questions, Problems & Solutions : TransWikia.com ~ Page 622

A discussion about $text{SO}(1,3)$ transformation generators on states and four-momentum little group

The question is quite long, this because many topics are touched, but I tried to make it the more self-contained I could: on the other side, many arguments are touched...

Asked on 01/25/2021 by Rob Tan

1 answer

Solving a classical damped free particle via the Fourier transform (and residue calculus)

Deriving the transfer functionSuppose we have a free particle in one dimension with position $x$ and momentum $p$, and some damping $Gamma$:begin{equation}begin{aligned}dot{x} &=...

Asked on 01/25/2021 by Ruvi Lecamwasam

1 answer

Neutron Damage in HPGe Detectors (Or any semiconductor)

From what I understand, neutrons hitting a germanium detector will cause damage to it by displacing atoms from the lattice, thus creating vacancies which become a trap for charge carriers....

Asked on 01/25/2021 by Omry

1 answer

Is "the earth moves around the sun" a case of Occam's razor?

This question is a bit more meta and non-straight forward than it might appear on first glance. I recently saw Why The Speed Of Light Is Unmeasurable,...

Asked on 01/25/2021 by Make42

2 answer

Special Relativity, Louis de Broglie Equation Dilemma

While learning atomic structure I stumbled upon a very unusual doubt. As we know that the energy of a wave is given by the equation: $E=frac{hc}{λ}$ and Louis de...

Asked on 01/25/2021 by Kshitij Kumar

3 answer

Does matter follow the curvature of space-time?

How is matter affected by the warping of space-time? Does it expand and contract, follow the curvature of space? What happens the shape/volume/density of matter when it enters a gravity...

Asked on 01/25/2021 by spaceface

3 answer

Instantaneous power delivered in a string

When the supports of a string are moving, why is the instantaneous power delivered by the string $0$? So we say that at all moving contacts of the string,...

Asked on 01/25/2021 by Light Yagami

1 answer

What makes the electron, as an excitation in a field, discrete?

In standard quantum mechanics, the wave function have discrete energy-values due to a potential. However, my very limited understanding of QFT is that electrons are excitation in the Dirac field,...

Asked on 01/25/2021 by Martin Johnsrud

3 answer

Equation for shape of water drop on hydrophobic surface

What would be the general equation of the 3D shape water forms when it "beads up" on a hydrophobic surface such as wax paper? ...

Asked on 01/25/2021 by Conrad Newfield

1 answer

Local phase invariance of our lagrangian

So in lectures we have just started looking at classical field theory. We were introduced to symmetries and we were told in general our lagrangian wont be invariance wrt to...

Asked on 01/25/2021

2 answer

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