To allow a speaker's 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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Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

How is the gravitational force related to the distance between two objects?

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon