Chang Hexiang's user avatar
Chang Hexiang's user avatar
Chang Hexiang's user avatar
Chang Hexiang
  • Member for 8 years, 6 months
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7 votes

Is a boat in water subject to Newtons 3rd Law

4 votes

Does the mass of a moving object in empty space with a constant velocity change within its own frame of reference from its rest mass?

4 votes
Accepted

Why we can't take vertical cylinder as Gaussian surface to calculate the electric field of an uniformly charged infinite sheet?

4 votes

How does the pressure at point A in the tube change when the tube is accelerated horizontally?

3 votes
Accepted

Can we derive the momentum of photon from special relativity?

3 votes
Accepted

Is energy conserved in a geodesic?

2 votes

Why does the Earth accelerate upward, according to Einstein?

2 votes

Probability flux

1 vote
Accepted

Can I use energy conservation to find out the new amplitude of SHM?

1 vote

Does everything have potential energy? + Question about mechanical energy

1 vote

What is proof of principle of superposition of waves on a string?

1 vote
Accepted

Interpretation of $\oint PdV\neq0$

1 vote

Euler-Lagrange for Dirac Lagrangian - is $\bar \psi$ independent of $\psi$?

0 votes

Line element in Kruskal coordinates

-1 votes

Confusion in definition of Potential Energy