Answer:
The magnitude of the charge on each sphere is 0.075 n.
Explanation:
Step 1: Use Coulomb's Law to calculate the magnitude of the charge: F = kq1q2/r²
Step 2: Rearrange the equation to solve for q1: q1 = F / (kq2/r²)
Step 3: Substitute the given values into the equation: q1 = 0.30 n / (9 x 10⁹ Nm²/C² x 0.075 n / (75 cm)²)
Step 4: Calculate the magnitude of the charge: q1 = 0.075 n