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8 October, 03:14

A dog lives next door to the Tijera's new residence. It barks constantly at a frequency of 7000 Hz. Sound travels near and through the Tijera residence at 1080 feet per second. What is the wavelength of the dog's bark to the nearest thousandth of a foot?

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  1. 8 October, 07:08
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    Wavelength times frequency equals speed, so wavelength=1080/7000=0.154 feet.
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