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1. At a distance of 15.0 m from a sound "point" source, the sound intensity level...

1. At a distance of 15.0 m from a sound "point" source, the sound intensity level is 65.0 dB. What is the power generated by this source?

2.A 4.0-g string is 0.36 m long and is under tension. The string vibrates at 500 Hz in its third harmonic. What is the tension in the string?

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