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YouTubeCognito
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⭐️ https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. What are sound waves are. 2. How sound travels through materials. 3. Sound wave properties across different media. * Frequency remains constant when sound changes medium. * Wavelength changes proportionally with speed. * Sound can be refracted, reflected, and absorbed. 4. How ...
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