Electrostatic Force Between Point Charges

A point charge of +5 μC is located at the origin of a Cartesian coordinate system, while a second point charge of -3 μC is positioned at coordinates (4 m, 0 m). According to Coulomb's law, the force between two point charges is expressed as:

F = k * |q1 * q2| / r²

where k is Coulomb's constant (approximately 8.99 × 10⁹ N m²/C²), and r is the distance between the charges. Calculate the magnitude of the electrostatic force acting on the -3 μC charge due to the +5 μC charge.