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A frequency generator (a device that produces sinusoidal signals whose frequency and amplitude can be independently set) is used to power a horn. The frequency is set to 2000HZ, and for a particular amplitude the sound intensity is measured to be 0.050 W/m2 at a distance of 12 m.
a. What is the power output of the horn?
b. What is the intensity of the sound wave 2 m from the horn?
c. Taking the speed of sound in air to be 334m/s, what is the wavelength of this sound?
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