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13. The pressure amplitude of a 500.0 Hz sound wave is 2.0 x 10-2 Pa. The...

13. The pressure amplitude of a 500.0 Hz sound wave is 2.0 x 10-2 Pa. The bulk modulus of air is 1.42 x 105 Pa and the density of the air is 1.2 kg/m3.

Find: (a) The speed of sound in air. (344.0 m/s)

(b) The displacement amplitude.

(c) The intensity of the wave.

(d) The intensity level of sound.

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