Question: Two 2.0-cm-diameter disks face each other, 1.0 mm apart. They are charged to 10 nC. a. What is the electric field strength between the disks?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. They are charged to ±10 nC.

a. What is the electric field strength between the disks?
b. 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?

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