character: Ms. Johnson
topic: The Effects of Sound Between Different Mediums
grade: 11
subject: Physics
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character: Mr. Thompson
topic: Sound Propagation in Solids
grade: 11
subject: Physics
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character: Dr. Smith
topic: Comparing Sound Speed in Air and Water
grade: 11
subject: Physics
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character: Ms. Lee
topic: Wave Behavior in Different Materials
grade: 11
subject: Physics
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