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A source of sound operates at \( 2.0 \mathrm{kHz}, 20 \mathrm{~W} \) emitting sound uniformly in all directions. The speed of sound in
\( \mathrm{P} \) air is \( 340 \mathrm{~m} \mathrm{~s}^{-1} \) and the density of air is \( 1.2 \mathrm{~kg} \mathrm{~m}^{-3} \). (a) What is the intensity at a distance of \( 6.0 \mathrm{~m} \) from the
W source ? (b) What will be the pressure amplitude at this point? (c) What will be the displacement amplitude at this point?
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