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An acoustic signal is composed of the first three harmonics of a wave of fundamental frequency...

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Physics

An acoustic signal is composed of the first three harmonics of awave of fundamental frequency 425 Hz. If these harmonics aredescribed, in order, by cosine waves with amplitudes of 0.630,0.900, and 0.650, what is the total amplitude of the signal at time0.825 seconds? Assume the waves have phase angles θn =0.

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4.2 Ratings (626 Votes)
Fundamental frequencyf1 425 Hz So Ist Harmonic Frequency 425 Hz 2nd Harmonic Frequencyf2 4252850 Hz 3rd Harmonic    See Answer
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