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 velocity is 2,813 m/s.If the density of brass is 8.47 $\times$ 10³ kg/m³,then what is the pressure amplitude of the sound wave?

A) 5.38 $\times$ 10⁸ N/m²
B) 5.10 $\times$ 10⁸ N/m²
C) 4.70 $\times$ 10⁸ N/m²
D) 4.17 $\times$ 10⁸ N/m²
E) 3.37 $\times$ 10⁸ N/m²

Correct Answer:

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