character: Ms. Sarah Lee
topic: Sound Waves in Various Environments
grade: 11
subject: Physics
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character: Mr. John Smith
topic: Wave Propagation in Different Mediums
grade: 11
subject: Physics
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character: Dr. Emily Taylor
topic: The Effects of Temperature on Sound Speed
grade: 11
subject: Physics
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character: Ms. Angela Brown
topic: Acoustic Properties of Water vs. Air
grade: 11
subject: Physics
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