Watt, which is a unit of power, is equal to a) a joule divided by a second b) a joule times a meter c) a joule times a second d) a joule divided by a meter

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge

How do you count the total number of atoms present on one side of a chemical equation?