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Two 2.5-cmcm-diameter-disks spaced 1.5 mmmm apart form a parallel-plate capacitor. The electric field between the disks...

Two 2.5-cmcm-diameter-disks spaced 1.5 mmmm apart form a parallel-plate capacitor. The electric field between the disks is 4.7×105 V/mV/m .

What is the voltage across the capacitor?

How much charge is on each disk?

An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.0×107 m/sm/s . What was the electron's speed as it left the negative plate?

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