character: Professor Lee
topic: Mediums Affecting Sound Propagation
grade: 11
subject: Physics
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character: Dr. Smith
topic: The Impact of Temperature on Sound Speed
grade: 11
subject: Physics
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character: Ms. Johnson
topic: Wave Properties in Different Mediums
grade: 11
subject: Physics
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character: Mr. Thompson
topic: Sound Waves and Their Behavior in Various Environments
grade: 11
subject: Physics
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