A13 g bullet traveling 213 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 152m/s. if the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?