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???? Progressive mechanical wave, speed and delay ✅ Calculation, exercise, speed, vibration ▶️ Playlist ???? MECHANICAL WAVES 〰️ First specialization: • MECHANICAL WAVES 〰️ First specialization ???? Chapters 00:00 Intro 00:13 What is a mechanical wave? 00:55 Wave speed and delay 01:56 Application exercise ???? First specialty program 1st: Wave speed. Delay.