character: Mr. Lee
topic: Characteristics of Sound Waves
grade: 11
subject: Physics
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character: Mr. Johnson
topic: Wave Properties and Phenomena
grade: 11
subject: Physics
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character: Ms. Carter
topic: Introduction to Sound Waves
grade: 11
subject: Physics
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character: Dr. Smith
topic: Physics of Sound: Frequency and Amplitude
grade: 11
subject: Physics
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