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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What happens in a global convection cell

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?