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(Solved): Two 2.0 cmcm-diameter disks face each other, 1.8 mmmm apart. They are charged to 17 nC. A pro ...
Two 2.0 cmcm-diameter disks face each other, 1.8 mmmm apart. They are charged to ±± 17 nC. 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?