character: Dr. Soundwave
topic: Fundamentals of Echocardiography
grade: 9
subject: Physics
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character: Professor Pulse
topic: Understanding Sound Waves in Physics
grade: 9
subject: Physics
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character: Dr. Echo
topic: The Physics of Sound and Ultrasound Technology
grade: 9
subject: Physics
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character: Ms. Frequency
topic: Applications of Wave Principles in Medical Imaging
grade: 9
subject: Physics
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