Physics Questions, Problems & Solutions : TransWikia.com ~ Page 780

Magnetic flux through a loop the same as flux through the plane outside the loop?

Let's say we have a current loop of radius $a$ in $x-y$ plane. Let's consider the flux ($phi=BA$) through the loop, and the flux through the rest of the plane,...

Asked on 11/30/2020 by RelativisticDolphin

1 answer

Symmetry of geodesic equations under the transformation of Christoffel symbols

I am not asking for a solution of the following problem that appears in my assignment. However, I don't understand the question and I would like someone to explain the...

Asked on 11/30/2020

1 answer

Anti-blue light gear. Some claim to filter blue light without changing color perception. Real or fake?

Please note: I do NOT wish to debate here whether blue light is really harmful or not. I just want to discuss what the anti-blue light technologies actually do. What...

Asked on 11/30/2020 by lostdatum

1 answer

Feynman Diagrams - Specific Questions

I have a very naive question concerning Feynman diagrams: If we consider the process $pi^{+}rightarrow mu^{+}nu_{mu}$ via the weak interaction, then we get this Feynman Diagram according to Wikipedia:...

Asked on 11/30/2020

1 answer

Show that any proper homogeneous Lorentz transformation may be expressed as the product of a boost times a rotation

I am trying to read Weinberg's book Gravitation and Cosmology. In which he derives the Lorentz transformation matrix for boost along arbitrary direction, (equations 2.1.20 and 2.1.21): $$Lambda^i_{,,j}=delta_{ij}+v_i v_jfrac{gamma-1}{mathbf{vcdot...

Asked on 11/30/2020 by Faber Bosch

1 answer

How does boson state operate on fermion state

I have a naive question on how Bosons interact with Fermions. In quantum field theory, it is stated that the Fermions interact with each other by exchanging Bosons. That means,...

Asked on 11/30/2020 by kolahalb

1 answer

Different Hilbert spaces in quantum mechanics

In a lot of literature the notion of different Hilbert spaces has been mentioned. In QFT, for non-interacting theories the Hilbert space is a called a 'Fock space', this is...

Asked on 11/30/2020

3 answer

Change in temperature of a moving gas container which is suddenly stopped

Although this question has been asked many times here, I haven't found a satisfactory detailed quantitative answer. The question is:If an ideal gas container that is moving with a velocity...

Asked on 11/30/2020 by Yasir Sadiq

6 answer

Relation in time for 2 points in space

What if I am at a point in space where 10 second of earth time is 1 seconds there, and I somehow manage to communicate from there to earth(even if...

Asked on 11/30/2020 by REBELAJ

0 answer

How is an Eddy current separator actually getting the particle fly off?

I am currently trying to understand the eddy current separator on a physical level, but unfortunately I have a few uncertainties to resolve. I don't quite understand what is ultimately...

Asked on 11/29/2020 by Johan Böni

1 answer

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