A vector is 14.4 m long and points in a 133 degree direction . Find the x - component of the vector .

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

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?

Is a copper wire a conductor or insulator?