Final answer:
The magnitude of the electrostatic force between two charges can be calculated using Coulomb's Law by multiplying their charge magnitudes, Coulomb's constant, and dividing by the square of the distance between them.
Step-by-step explanation:
To find the magnitude of the electrostatic force that one charge exerts on the other, we can use Coulomb's Law, which is expressed as:
F = k * |q1 * q2| / r^2
where:
- F is the force between the charges,
- k is Coulomb's constant (8.9875 × 10^9 N m^2/C^2),
- q1 and q2 are the amounts of the charges, and
- r is the distance between the centers of the two charges.
By plugging in the given values:
F = (8.9875 × 10^9 N m^2/C^2) * |7.80 × 10^-9 C * 4.30 × 10^-9 C| / (1.70 m)^2
This will give us the force in newtons (N).
It's important to note that we are only considering the magnitude of the forces here, and that the sign of the charge does not affect the magnitude of the force.