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An organ pipe is 5.90 m long and is closed at one end. (The speed of...

An organ pipe is 5.90 m long and is closed at one end. (The speed of sound at T = 20.0°C is v = 343 m/s.)

What is the second lowest standing wave frequency for the organ pipe?

What is the third lowest standing wave frequency for the organ pipe?

What is the fourth lowest standing wave frequency for the organ pipe?

The sound level 23.2 m from a loudspeaker is 63.4 dB. What is the rate at which sound energy is produced by the loudspeaker, assuming it to be an isotropic source?

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