If you use the spring from problem #3 and hang a 500 g mass on it, how far will it stretch? Convert your answer to cm. this is really important that I get this right for my final test tomorrow

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e