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Sanya's user avatar
Sanya's user avatar
Sanya
  • Member for 7 years, 11 months
  • Last seen more than 6 years ago
18 votes
Accepted

How to pour water from a bottle as fast as possible?

12 votes

Should zero be followed by units?

10 votes

Why do we use the electron volt?

7 votes

Work is not done by the magnetic field?

5 votes

Why doesn't the adiabatic reduction of first law of thermodynamics, $W = -\Delta U,$ hold for non-conservative forces?

5 votes
Accepted

Algebra of the complex scalar field - complex conjugate of commutation relations

5 votes

Writing Kinetic Energy in Cylindrical Coordinates

5 votes
Accepted

How can the electric potential at the center of a ring be large if the electric field isn't, and vice versa?

5 votes
Accepted

Confusion regarding factor 2 in uncertainty principle

4 votes
Accepted

What is the difference between velocity and temperature?

4 votes
Accepted

What is an orthogonal state?

4 votes
Accepted

When will ice melt faster?

4 votes

If virtual particles is not real, what are the lines in Feynman diagram?

3 votes
Accepted

Oscillations concept about velocity

3 votes
Accepted

Is long wave electromagnetic radiation hot? If so, why?

3 votes

Sign in vector equation for electrostatic Coulomb force

3 votes
Accepted

Why ain't all ions excluding alpha particle negatively charged?

3 votes

Minimum velocity needed to throw a stone to another planet

3 votes

How does infrared light behave through water?

3 votes

Justification of Physical Laws

3 votes

Why $\epsilon_0 = 1/(4\pi k)$ instead of $\epsilon_0 = 4\pi k$?

3 votes

What happen when you stir a cup of coffe?

3 votes

Spacetime and quantum mechanics

2 votes

What is the difference between heat and light?

2 votes

Potential step and tunnelling

2 votes

Electric field around a moving charge

2 votes

Why alloy have more resistance?

2 votes

Formula for discontinuity of electric field across boundary

2 votes
Accepted

Problem understanding this differential equation on elasticity. Help!

2 votes
Accepted

What is difference between operating wave function with operator of an observable and measuring for an observable?