character: Ms. Rivera
topic: The Role of Frequency in Sound Production
grade: 9
subject: Physics
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character: Mr. Thompson
topic: Waves and Their Properties
grade: 9
subject: Physics
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character: Dr. Kim
topic: Understanding Sound Waves
grade: 9
subject: Physics
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character: Ms. Patel
topic: The Impact of Frequency on Pitch
grade: 9
subject: Physics
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