Final answer:
To find the force on a charge in the middle of the figure, we need to calculate the net force due to the four other charges. The force between two charges is given by Coulomb's Law. We can calculate the forces between the middle charge and each of the four other charges, and then combine them to find the net force in component form.
Step-by-step explanation:
To find the force on a charge in the middle of the figure, we need to calculate the net force due to the four other charges. The force between two charges is given by Coulomb's Law:
F = k * |q1 * q2| / r^2
where F is the force, k is the Coulomb's constant, q1 and q2 are the charges, and r is the distance between the charges.
We can calculate the forces between the middle charge and each of the four other charges, and then combine them to find the net force in component form.