A Sound Wave in Brass Has a Displacement Amplitude of 3.00

A sound wave in brass has a displacement amplitude of 3.00 mm. The frequency of the sound wave 750 Hz and the speed is 2,813 m/s. If the density of brass is 8.47 × 10³ kg/m³, then what is the pressure amplitude of the sound wave?

A) 5.38 × 10⁸ N/m²
B) 5.10 × 10⁸ N/m²
C) 4.70 × 10⁸ N/m²
D) 4.17 × 10⁸ N/m²
E) 3.37 × 10⁸ N/m²

Correct Answer:

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