Calculate the force between the 5 \( \mathrm{nC} \) charge and the 2 \( \mathrm{nC} \) charge:
We can use Coulomb's law to calculate the force between two charges:
\[F = \frac{kq_1q_2}{r^2}\]
where F is the force, k is Coulomb's constant (9 x 10^9 Nm^2/C^2), q1
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