The intensity of a sound wave 20 m away from the sound source is 3 xx 10^(-9) W//m^(2). Find the intensity of the wave 32m away from the source, if the half thickness for sound of this frequency is 120m.

The intensity of a sound wave 20 m away from the sound source is 3 xx

1.	The intensity of a sound wave 20 m away from the sound source is 3 xx 10^(-9) W//m^(2). Find the intensity of the wave 32m away from the source, if the half thickness for sound of this frequency is 120m.
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The intensity of a sound wave 20 m away from the sound source is 3 xx 10^(-9) W//m^(2). Find the intensity of the wave 32m away from the source, if the half thickness for sound of this frequency is 120m.

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