Skip to main content

All Questions

Filter by
Sorted by
Tagged with
0 votes
2 answers
150 views

How Quantum Mechanics reconciles with Classical Mechanics?

Imagine we have to charged particles. The kinetic energy of the system is: $$ T = \frac{1}{2}(m_1 + m_2) \mathbf{\dot{R}}_{cm}^2 + \frac{1}{2} \mu \dot{R}^2 + \frac{L^2}{2 \mu R^2} $$ and its ...
Álvaro Rodrigo's user avatar
3 votes
4 answers
3k views

How can I use a magnet to lift a paperclip?

This question has been asked already, but no satisfying answer came up. All the answers seem to push the problem further, but do not explain clearly what is going on. I will reformulate it for a ...
Andrea's user avatar
  • 5,270