character: Mr. Thompson
topic: Sound Waves and Their Properties
grade: 11
subject: Physics
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character: Ms. Garcia
topic: Understanding Frequency and Amplitude
grade: 11
subject: Physics
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character: Dr. Lewis
topic: The Doppler Effect in Sound Waves
grade: 11
subject: Physics
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character: Prof. Kumar
topic: Applications of Sound Waves in Technology
grade: 11
subject: Physics
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