Recent content by scienture

1. Physics 20-1: Energy

Did the problem statement tell that whether the spring was vertical or horizonal? if it's vertical ,the answer will be different.
2. Gauss's Law question

When a conductor is in electrostatic equilibrium,there is no electric field inside the conductor(in fact ,the inner surface also belongs to the 'inside' part).According to 'Gauss law',as a result, there shouldn't be any charge inside the conductor whatsoever.
3. Gauss's Law question

The conductor's charge will only exist on the outer surface when it's in electrostatic equilibrium.Otherwise charge will move to the out surface to keep the 'ELECTROSTATIC EQUILIBRIUM'.
4. Balls and clay blob - Collision problems

I think you've already known that since the 'Perfect elastic collision',the velosity of the ball after bouncing will be as same as that of it before bouncing,which just has an opposite direction. Now let's try this. Following Newton second law, acceleration comes from force.No matter whether...