character: Marie Curie
topic: Radioactivity and Its Applications in Technology
grade: 9
subject: Physics
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character: Sound Waves
topic: Applications of Sound in Sonar Technology
grade: 9
subject: Physics
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character: Sound Engineering
topic: Applications of Sound in Music Technology
grade: 9
subject: Physics
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character: Physics of Sound
topic: Utilizing Sound for Medical Imaging (Ultrasound)
grade: 9
subject: Physics
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