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## Homework Statement

Calculate the force of electric repulsion between two small spheres placed 1.0 m apart if each has a deficit of 1.0 x 10^8 electrons.

## Homework Equations

N = q/e

qe = mg

q = mg / e

q = mgr / Vb

e = 1.602 x 10^-19 C.

k = 9 x 10^9 - not sure if relevant or not.

Fe = qe

Answer ( as stated in the textbook): 2.3 x 10^-12N

## The Attempt at a Solution

Fe = qe?

r = 1. 0 m

e constant used

g = 9.8 N/kg?

Fe = (1.0 x 10^8 C)( 1.6 x 10^-19 C)x (1.0m/9.8N/kg) = 1.63 x 10^-12 N.

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