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## Homework Statement

During a thunderstorm the electric field at a certain point in the earth's atmosphere is 1.07e5 N/C, directed upward. Find the acceleration of a small piece of ice of mass 1.09e-4 g, carrying a charge of 1.08e-11 C.

## Homework Equations

F= (q')(E)

a= F/mass

## The Attempt at a Solution

F= (1.08 e -11 C) ( 1.07 e 5 N/C) = 1.16 e-6 N

a= F/m= (1.16 e -6)/ (1.09 e -7 kg)= 1.06 e-2 m/s^2

The above answer is what I get but the key is saying:

0.802 m/s^2

Please help me figure out what I am doing wrong.

Thank you.

Thanks again to anyone who replies. It is late here so I am signing off.. I will reply tomorrow if anyone has responded.

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