Answer
14 N
Work Step by Step
Use Coulomb’s law to calculate the magnitude of the force.
$$F=k\frac{Q_1Q_2}{r^2}$$
$$=(8.99\times10^9\frac{N\cdot m^2}{C^2})\frac{(1.60\times10^{-19}C)^2}{(4.0\times10^{-15}m)^2}$$
$$=14N$$
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 16 - Electric Charge and Electric Field - Problems - Page 469: 4
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