Abrass cube has each side 10cm long at 150 c. what will be the volume of the brass at 600c if the coefficient of linear expansion of brass is 19.3x10-6/c?

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