Final answer:
The magnitude of the electrostatic force can be calculated using Coulomb's law, and it is approximately 225 x 10^6 N.
Step-by-step explanation:
The magnitude of the electrostatic force on charge q can be calculated using Coulomb's law:
F = k * |Q * q| / L^2
Where:
- F is the magnitude of the electrostatic force
- k is the electrostatic constant (approximately 9 x 10^9 Nm^2/C^2)
- Q is the charge of the first object (25 μC)
- q is the charge of the second object (10 μC)
- L is the distance between the charges (40 cm)
Substituting the given values:
F = (9 x 10^9 Nm^2/C^2) * |25 μC * 10 μC| / (40 cm)^2
F = (9 x 10^9 Nm^2/C^2) * (250 μC^2) / (0.4 m^2)
F ≈ 225 x 10^6 N