Chemistry, 04.02.2020 02:55 mariela78

Emma sings into a microphone. the sound is transferred from the microphone to a loudspeaker that is plugged into the wall. her voice comes out of the loudspeaker and sounds much louder than before.

in this system, sound energy is being transformed into energy and then back into energy.

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Emma sings into a microphone. the sound is transferred from the microphone to a loudspeaker that is...