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bloop:
Hi I have a question and it is attached. The answer is C and I was wondering how you would get it.

kiwiberry:

--- Quote from: bloop on July 16, 2017, 03:11:18 pm ---Hi I have a question and it is attached. The answer is C and I was wondering how you would get it.

--- End quote ---

Hello, welcome to the forums! :)
Given the voltage and the distance between the electric plates, we can calculate the strength of the electric field:
And then using the charge of an electron, we can calculate the electric force

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