character: Mr. Smith
topic: Wave Properties and Sound Behavior
grade: 9
subject: Physics
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character: Mr. Johnson
topic: Understanding Sound Waves
grade: 9
subject: Physics
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character: Ms. Lee
topic: Fundamentals of Waves
grade: 9
subject: Physics
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character: Dr. Patel
topic: Applications of Wave Behavior
grade: 9
subject: Physics
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