character: Mrs. Lee
topic: Exploring Sound Waves and the Doppler Effect
grade: 11
subject: Physics
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character: Mr. Johnson
topic: Wave Properties and Their Applications
grade: 11
subject: Physics
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character: Ms. Thompson
topic: Understanding Frequency and Pitch
grade: 11
subject: Physics
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character: Dr. Smith
topic: Introduction to Wave Interference
grade: 11
subject: Physics
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