character: Dr. Smith
topic: Understanding Amplitude in Waves
grade: 9
subject: Physics
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character: Professor Johnson
topic: Wave Properties and Their Applications
grade: 9
subject: Physics
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character: Ms. Clark
topic: Introduction to Sound Waves and Amplitude
grade: 9
subject: Physics
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character: Mr. Lee
topic: Exploring Electromagnetic Waves and Amplitude
grade: 9
subject: Physics
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