character: Ms. Harmonia
topic: Frequency and Pitch Relationships
grade: 10
subject: Physics
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character: Mr. Resonate
topic: Sound Waves and Their Properties
grade: 10
subject: Physics
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character: Dr. Echo
topic: The Doppler Effect and Sound
grade: 10
subject: Physics
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character: Prof. Harmonic
topic: Understanding Harmonics in Music
grade: 10
subject: Physics
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