Physics Questions, Problems & Solutions : TransWikia.com ~ Page 529

General Relativity: is Tangent Space Always Flat?

In General Relativity we see spacetime as a manifold; in this context vectors can't be defined on the manifold but need to be defined on the tangent space of the...

Asked on 02/27/2021

5 answer

Electron density in low orbit space

Assume a spacecraft orbiting earth in about 400km. Now you want to measure the free charge carriers there per volume unit, how would this be done?I have an idea,...

Asked on 02/27/2021 by jjstcool

1 answer

If you have an object that is moving with a constant velocity around a planet the force gravity would be greater then the normal force. Why?

If you have an object moving at constant velocity on a planet with no atmosphere and friction then the force of gravity is greater then the normal force. Wouldn't that...

Asked on 02/27/2021

1 answer

If two reference frames are not moving with respect to each other, do we take into account their distance apart to determine simultaneity of events?

I'm trying to clarify the definition of simultaneity and/or relative simultaneity - for now, only with respect to two different reference frames that are not moving relative to each other....

Asked on 02/27/2021 by ParityViolator

2 answer

What is the entropy difference between $n$ free-floating amino acids and $n$ amino acids that have been translated into a protein?

Is there any known calculation for the (~ average) change in entropy between $n$ free-floating amino acids in a cell, at typical physiological concentrations, versus those same $n$...

Asked on 02/27/2021 by Artemy

0 answer

Validity of Ampere circuital law

I read that the line integral in Ampere circuital law is applicable for a piece-wise continuous curve (loop). My question is whether the law is valid only for planar loops...

Asked on 02/27/2021 by Vilvanesh

1 answer

Suitable choice of surfaces for integrals

Especially in electrodynamics, the integral theorems of Gauss and Stokes (in connection with the Maxwell equations) are often used to compute electric or magnetic fields. To compute the resulting integrals,...

Asked on 02/27/2021

1 answer

Time lag between observed electrical field and polarity of light?

I was listening to the Feynman lectures on physics Vol. 3, Ch.2 the other day, and he was talking about the relationship between light polarity and the electric field of...

Asked on 02/27/2021

0 answer

CHSH and absolute value, plus impossibility of complete definiteness

Along the proof of CHSH inequality, the following point is reached : $$C=int|A(a,x)B(b,x)-A(a,x)B(b',x)|+|A(a',x)B(b,x)+A(a',x)B(b',x)|dx$$ Then factorizes the A in each absolute value and deduces $Cleq 2$. Now if one...

Asked on 02/27/2021

0 answer

How to get eigenvalue equation with Transfer Matrix Method?

I'm studying a paper on physics entitled "Bound State of the One-Dimensional Dirac Equation for Scalar and Vector Double Square Well Potential" It states in the paper that "It is...

Asked on 02/27/2021 by Aff_

0 answer

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