Question:
Two 2.5-cm-diameter disks face each other, 2.0 mm apart.
Last updated: 7/31/2022
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Two 2.5-cm-diameter disks face each other, 2.0 mm apart. They are charged to ± 15 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?