character: Ms. Patel
topic: Frequency Changes in Sound Waves due to Motion
grade: 11
subject: Physics
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character: Mr. Anderson
topic: Doppler Effect in Sound Waves
grade: 11
subject: Physics
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character: Dr. Lee
topic: Wave Properties and Motion
grade: 11
subject: Physics
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character: Mrs. Brown
topic: Applications of Frequency Shifts in Real Life
grade: 11
subject: Physics
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