A plane sound wave propagates along the \( x \)-axis. The damping coefficient of the wave is \( ...

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A plane sound wave propagates along the \( x \)-axis. The damping coefficient of the wave is \( \gamma=0.0230 \mathrm{~m}^{-1} \). At the point \( x=0 \) the loudness level is \( L=60 \mathrm{~dB} \). Find :
the loudness level at a point with coordinate \( x=50 \mathrm{~m} \);
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