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SphericalApproximator
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5 votes
3 answers
836 views

Conceptual question about special relativity in electrodynamics

4 votes
5 answers
2k views

Does the mass of a particle change when emitting a photon?

2 votes
2 answers
172 views

Correct interpretation for the expectation evalue

2 votes
1 answer
166 views

Non-invertible function in the context of Legendre transformations

2 votes
1 answer
194 views

Binder cumulant method for non-Gaussian distributions

1 vote
0 answers
50 views

Newtonian approximation for the tidal forces at the event horizon of a black hole

1 vote
1 answer
84 views

Simplification through the replica symmetry Ansatz

1 vote
2 answers
601 views

Calculating specific heat capacity from entropy

1 vote
1 answer
2k views

Selection rules in the harmonic oscillator

1 vote
1 answer
255 views

Conceptual question about the transition dipole moment and its components

1 vote
1 answer
58 views

Photoeffect with relativistic electrons

0 votes
0 answers
106 views

Electric field along the axis of a rod

0 votes
2 answers
123 views

Particle in the Yukawa potential - Showing that the $z$-component of the angular momentum is conserved

0 votes
3 answers
73 views

Light beam catching up to a driving truck

0 votes
2 answers
1k views

Why is the magnetic field in the center of a coil the srongest

0 votes
1 answer
62 views

Time independent Electric field implies constant energy

0 votes
1 answer
152 views

How do I start with this problem? (Dielectric rod with surface charge) [closed]