### Questions (59)

 21 Can a non-rotating ball have angular momentum? 5 How is the tension of a wire an electromagnetic force? 4 The acceleration of circulation motion 4 How does holding a glass prevent it from falling? 3 Why does different part of a spring having mass expand proportional to their distance while the spring has some mass hanged in the bottom?

### Reputation (1,085)

This user has no recent positive reputation changes

 2 Potential by Assembling Charges 1 Inertia of a falling weight 1 Why exactly is work a path function? 0 Curl of gradient of potential in electrostatic 0 Basic Electrostatics Problem Modified

### Tags (105)

 2 newtonian-mechanics × 21 1 conservative-field × 2 2 electrostatics × 11 1 collision × 2 2 potential × 3 1 estimation 1 forces × 13 1 mass 1 work × 4 1 inertia

### Bookmarks (140)

 123 What does it mean for two objects to “touch”? 120 Why does Newton's Third Law actually work? 91 Seeing something from only one angle means you have only seen (what?)% of its surface area at most? 64 What is really curved, spacetime, or simply the coordinate lines? 50 Why isn't the Euler-Lagrange equation trivial?