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Biology 16 Online
OpenStudy (anonymous):

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. heat; sound mechanical; sound electrical; sound electrical; mechanical

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