***Please Note***The YouTube videos have been sorted into playlists and lists the most recent videos first.  Click on Playlists and choose either Physics 112 and Physics 122. Peter MacDonald - YouTube; VideosPhysics 112Concluded standing waves and started into sound: physics112_sound_notes_nov29.pdfphysics112_standingwaves_nov29.pdfPhysics 122Introduction to projectile motion - horizontal launch.Pg 20 # 1 - 4 of the physics_122_problem_set.pdf