character: Mr. Lee
topic: The Properties of Waves in Different Mediums
grade: 9
subject: Physics
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character: Ms. Johnson
topic: Types of Waves: Transverse and Longitudinal
grade: 9
subject: Physics
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character: Dr. Smith
topic: Wave Speed and Mediums: Understanding the Relationship
grade: 9
subject: Physics
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character: Mr. Brown
topic: Sound Waves and Their Properties in Various Mediums
grade: 9
subject: Physics
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