User Gabriel Sandoval

9 votes

1 answer

782 views

What advantages have a symplectic or geometric integrator over a simple one, say, RK4?

asked May 18, 2017 at 23:39

3 votes

1 answer

552 views

The tennis racket theorem with degenerate eigenvalues $I_1, I_2 , I_3$: Are the rotations around the principal axes stable?

asked Dec 7, 2017 at 0:38

3 votes

1 answer

291 views

Does energy conservation implies the mass conservation?

asked May 5, 2017 at 1:53

2 votes

0 answers

128 views

Wheel rolling leaned against a vertical wall

asked Nov 21, 2017 at 19:49

2 votes

0 answers

209 views

Why the uncertainty principle implies the vacuum fluctuations? [closed]

asked Jul 10, 2017 at 1:36

1 vote

1 answer

1k views

Transformation of the operators $\mathbf\nabla$ and $\partial/\partial t$ under Galilean transformation

asked Feb 12, 2018 at 3:55

1 vote

2 answers

96 views

Why the proportionality factor of 'Quantum' Poisson brackets is imaginary?

asked May 3, 2020 at 23:41

0 votes

2 answers

2k views

Find the lagrangian of a particle given the force

asked May 2, 2017 at 1:04

0 votes

1 answer

79 views

Why is it possible to write the electrical potential as a sum of $\int dV \,\rho/R$ and $\int da \,\sigma/R$?

asked May 10, 2019 at 18:55

0 votes

0 answers

49 views

Understanding boundary conditions and forced system - Wave Equation

asked Jun 28, 2019 at 1:34

0 votes

2 answers

338 views

A particle subject to a potential of the form $V(x)=V_0\vert x \vert$ [closed]

asked Oct 23, 2017 at 2:48

-1 votes

2 answers

254 views

A planet with a straight tunnel through it [duplicate]

asked Nov 7, 2017 at 4:04

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12 Questions

What advantages have a symplectic or geometric integrator over a simple one, say, RK4?

The tennis racket theorem with degenerate eigenvalues $I_1, I_2 , I_3$: Are the rotations around the principal axes stable?

Does energy conservation implies the mass conservation?

Wheel rolling leaned against a vertical wall

Why the uncertainty principle implies the vacuum fluctuations? [closed]

Transformation of the operators $\mathbf\nabla$ and $\partial/\partial t$ under Galilean transformation

Why the proportionality factor of 'Quantum' Poisson brackets is imaginary?

Find the lagrangian of a particle given the force

Why is it possible to write the electrical potential as a sum of $\int dV \,\rho/R$ and $\int da \,\sigma/R$?

Understanding boundary conditions and forced system - Wave Equation

A particle subject to a potential of the form $V(x)=V_0\vert x \vert$ [closed]

A planet with a straight tunnel through it [duplicate]