User Ruben Campos Delgado

17 votes

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What can go wrong with applying chain rule to angular velocity of circular motion?

answered Feb 27, 2021 at 10:20

4 votes

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Canonical conjugate momenta of EM Field Lagrangian density

answered Feb 10, 2021 at 8:13

3 votes

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Understanding Feynman Diagrams for the 2-point correlation function and $\phi^3$

answered Mar 13, 2021 at 11:50

3 votes

How does the centrifugal force act upon sound?

answered Mar 17, 2021 at 18:56

3 votes

Newton's Laws of Motion, Pulleys, Rope and tension

answered Mar 18, 2021 at 12:56

3 votes

Definition of invariance of a QM operator under a transformation

answered Nov 17, 2021 at 12:47

2 votes

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Calculating the amplitude for a free particle to propagate from $\mathbf{x_0}$ to $\mathbf{x}$ in nonrelativistic case

answered Jan 20 at 12:32

2 votes

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Trouble in Calculating Force required to pull a chain over an inclined Plane

answered Feb 9, 2021 at 17:21

1 vote

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Why Black Hole is maximally chaotic?

answered Feb 14 at 12:57

1 vote

What does the discovery of pressure of black holes imply for spacetime thermodynamics?

answered Nov 2, 2022 at 13:41

1 vote

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Derivation of path equation, how to derive $$ r''= - \frac{L^2}{m^2}u^2 \frac{d^2u}{d\theta^2 } $$

answered Nov 11, 2022 at 12:42

1 vote

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Gravitational potential inside and outside a spherical shell

answered Feb 14, 2021 at 9:45

1 vote

Is conformal transformation a coordinate transformation or not?

answered Feb 7, 2021 at 14:43

1 vote

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Particle paths - the distance moved by a particle in a velocity field

answered Feb 27, 2021 at 10:36

1 vote

Charge conjugation on spinors: Am I missing a (-1)?

answered Mar 2, 2021 at 9:23

0 votes

How to feel energy so I can imagine it?

answered Mar 11, 2021 at 9:19

0 votes

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$U(1)$ Local Gauge Invariance: What do $q$ and $\alpha(x)$ mean?

answered Feb 7, 2021 at 19:04

0 votes

Validity of continuity equation $\frac{\partial \rho }{\partial t}+\nabla \cdot \left(\rho \vec{V}\right)=0$

answered Feb 26, 2021 at 16:00

0 votes

Metric in dilatation transformation of massless scalar field

answered Nov 29, 2022 at 16:31

0 votes

What is the pressure inside of a black hole?

answered Dec 20, 2022 at 15:57

0 votes

Reference for Quantum field theory in $S^1 \times R$

answered Nov 6, 2022 at 23:01

0 votes

Scaling dimension and inversions

answered Oct 31, 2022 at 11:40

0 votes

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Physics 101- About Force

answered Jan 31 at 11:59

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23 Answers

What can go wrong with applying chain rule to angular velocity of circular motion?

Canonical conjugate momenta of EM Field Lagrangian density

Understanding Feynman Diagrams for the 2-point correlation function and $\phi^3$

How does the centrifugal force act upon sound?

Newton's Laws of Motion, Pulleys, Rope and tension

Definition of invariance of a QM operator under a transformation

Calculating the amplitude for a free particle to propagate from $\mathbf{x_0}$ to $\mathbf{x}$ in nonrelativistic case

Trouble in Calculating Force required to pull a chain over an inclined Plane

Why Black Hole is maximally chaotic?

What does the discovery of pressure of black holes imply for spacetime thermodynamics?

Derivation of path equation, how to derive $$ r''= - \frac{L^2}{m^2}u^2 \frac{d^2u}{d\theta^2 } $$

Gravitational potential inside and outside a spherical shell

Is conformal transformation a coordinate transformation or not?

Particle paths - the distance moved by a particle in a velocity field

Charge conjugation on spinors: Am I missing a (-1)?

How to feel energy so I can imagine it?

$U(1)$ Local Gauge Invariance: What do $q$ and $\alpha(x)$ mean?

Validity of continuity equation $\frac{\partial \rho }{\partial t}+\nabla \cdot \left(\rho \vec{V}\right)=0$

Metric in dilatation transformation of massless scalar field

What is the pressure inside of a black hole?

Reference for Quantum field theory in $S^1 \times R$

Scaling dimension and inversions

Physics 101- About Force