- #1
Octoshark
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Homework Statement
A 1.0-C charge is 15 m from a second charge, and the force between them is 1.0 N.
What is the magnitude of the second charge?
Homework Equations
F = k(q1)(q2)/r^2
The Attempt at a Solution
F = k(q1)(q2)/r^2 need to solve for q2 so...
F(r^2)/k(q1) = q2
1N(225m)/(9x10^9)(1C) = 25nC
That is correct, right? I just wasn't sure because this is on my sample exam, but we never used nano numbers during class so I wanted to double check.