Suppose that the sound level of a conversation is initially at an angry \( 75 \mathrm{~dB} \) an...

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Suppose that the sound level of a conversation is initially at an angry \( 75 \mathrm{~dB} \) and then drops to a soothing \( 55 \mathrm{~dB} \). Assuming that the frequency of the sound is \( 500 \mathrm{~Hz} \), determine the (a) initial and (b) final sound intensities and the (c) initial and (d) final sound wave amplitudes.
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