character: Dr. Williams
topic: Exploring Wave Properties in Physics
grade: 9
subject: Physics
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character: Professor Smith
topic: Understanding Sound Waves in Physics
grade: 9
subject: Physics
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character: Ms. Johnson
topic: Application of Wave Theory in Real Life
grade: 9
subject: Physics
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character: Mr. Taylor
topic: Light Waves and Their Properties
grade: 9
subject: Physics
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