Plugging in the values, we get: E = (7.03 × 10⁻⁹ C/m²) / (2 * 8.85 × 10⁻¹² C²/Nm²) = 397 N/C Since the sheet is finite, the electric field at a point 0.100 mm above the center of the sheet will be slightly less than this value. However, this approximation is reasonable for this problem.