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Two 2.1 cm -diameter disks face each other, 1.5 mm apart. They are charged to ±13nC....

Two 2.1 cm -diameter disks face each other, 1.5 mm apart. They are charged to ±13nC.

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?

Science   Advanced-Physics   
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