Physics, 30.03.2020 17:20, bellam302

To allow a speakers voice to be heard in an auditorium, an amplifier was used to increase the sound energy (loudness) of the wave
seen in the image above the answer choices. Which wave is the result of amplification and produces a louder sound?
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To allow a speakers voice to be heard in an auditorium, an amplifier was used to increase the sound...