character: Ms. Johnson
topic: The Role of Pendulums in Timekeeping
grade: 11
subject: Physics
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character: Mr. Smith
topic: The Physics of Pendulums
grade: 11
subject: Physics
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character: Dr. Lee
topic: History of Timekeeping Devices
grade: 11
subject: Physics
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character: Ms. Garcia
topic: Understanding Harmonic Motion
grade: 11
subject: Physics
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