Calculate the Pressure Amplitude (In N/m²) of a 500 Hz

Multiple Choice

Calculate the pressure amplitude (in N/m²) of a 500 Hz sound wave in helium if the displacement amplitude is equal to 5.0 × 10−⁸ m. (ρ = 0.179 kg/m³, v = 972 m/s.)

A) 3.5 × 10−²
B) 1.6 × 10−²
C) 2.7 × 10−²
D) 4.2 × 10−²
E) 2.0 × 10−²