Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 22 - Think and Solve - Page 426-427: 38


10 N.

Work Step by Step

Use Coulomb's Law, $F = k \frac{q_{1} \; q_{2}}{d^{2}}$. $$F = 9.0 \times 10^{9} \frac{N m^{2}}{C^{2}} \frac{q_{1} \; q_{2}}{d^{2}}$$ $$F = 9.0 \times 10^{9} \frac{N m^{2}}{C^{2}} \frac{(0.000001 C)(0.000001 C)}{(0.03 m)^{2}}$$ $$F = 10 N$$
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