A car horn emits 50 W of sound power. Suppose you are standing 10.0 m away from the car. Determine the intensity of sound at the point where you are standing.

• A. 78.9 × 10^-3 W/m²
• B. 87.9 × 10^-3 W/m²
• C. 93.8 × 10^-3 W/m²
• D. 39.8 × 10^-3 W/m²

Answer: (D)