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Created for Albert.io. Copyright 2016. All rights reserved.

Two metal plates are placed $30\text{ cm}$ apart and then charged to the potentials indicated in the diagram above. A charged object with a charge of $+0.02\text{ C}$ and mass of $20\text{ grams}$ is released from rest at the upper plate.

Which one of the following is closest to the speed of the object as it reaches the lower plate?

A

$1.1\text{ m/s}$

B

$5.5\text{ m/s}$

C

$7.7\text{ m/s}$

D

$11\text{ m/s}$

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