Constantine Black's user avatar
Constantine Black's user avatar
Constantine Black's user avatar
Constantine Black
  • Member for 8 years, 10 months
  • Last seen more than a month ago
7 votes
Accepted

What makes an orbit stable or unstable?

4 votes

How does the heat of Sun come on Earth when there is no medium?

4 votes

Transition probability derivation: How to prove $\lim_{\alpha\rightarrow\infty} \frac{\sin^2\alpha x}{\alpha x^2} ~=~\pi\delta(x)$?

4 votes

How to show invariance using the Maxwell tensor?

4 votes

What is behind the definitions of work and energy?

4 votes

How fast is information transferred between the two entangled particles?

4 votes

Why the unit vector is represented as a partial derivative in GR?

3 votes
Accepted

Fringe pattern in Lloyd mirror

3 votes

Why string theory?

3 votes

The difference between magnetic fields and electromagnetic radiation

3 votes
Accepted

How to determine whether a nuclear transition would be electric octupole, or hexadecapole?

2 votes

How does any vibrating object generate sound?

2 votes
Accepted

Showing existence of negative temperature for a quantum system

2 votes

What is the simplest way to prove that Earth orbits the Sun?

1 vote

Does a moving charge have additional (magnetic) energy

1 vote
Accepted

Question about particles in electric fields. Homework question

1 vote

How is the conservation of momentum satisfied in long-range attraction such as electromagnetism and gravity?

1 vote

Reflectivity of Metals - real and imaginary part of k-vector and complex dielectric function

1 vote

Is there any easy process that absorbs heat?

1 vote

Finding the wave function of a quantum harmonic oscillator

1 vote

Using rotation matrix for spin to write x oriented spin in z-spin basis

1 vote

Biological heat dissipation methods

1 vote
Accepted

Degeneracy split in $n=2$ hydrogen due to uniform electric field. Why is main diagonal zero?

1 vote

Direction of acceleration at highest point

1 vote

Proof of conservation of energy with the relativistic definition of force

0 votes

Force between two point charges moving parallel to each other

0 votes

What is the location of point charge with respect to the original charged body?

0 votes

Why doesn't steady flow of air create sound?

0 votes

Can pressure be negative?

0 votes

Why do objects appear smaller when farther away?