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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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What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds
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Emma sings into a microphone. the sound is transferred from the microphone to a loudspeaker that is...
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