lecture28_09 - Announcements 1 HW11 due April 22 2 Make-up...

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1 Announcements 1. HW11 due April 22 2. Make-up exam: April 22 Wednesday, 7:20 – 9:10 pm, meet at Prof. Reitze’s office (NPB 2265) covers all material in the course. To take the make-up exam, you must obtain permission from Prof. Chan or Prof. Reitze. Announcements 3. Final exam: April 25, Saturday, 10 am to noon Room assignments: last name room A-GAR computer science engineering A101 GEE-J Fine Arts B 105 K-MAZ Florida Gym 230 MCC-O Florida Gym 260 P-R Florida Gym 280 S-Z Williamson 100 roughly ½ of questions on topics covered in midterms, the rest on Chapters 9, 13, 14 g L T π 2 = Simple pendulum from last lecture Clarification between period and tension Period, not tension 13. Vibrations and Waves Found everywhere in the universe and in daily life. hearing and vision. Ultrasound diagnostics. Image: Absorption, Transmission, and Reflection of ultrasound Longitudinal or compression wave Wave velocity Transverse wave Each part of spring moves to wave velocity Wave velocity λ λ X direction (space/not time) Waves: Chapter 13.4-13.7 λ = wavelength Simple harmonic motion y x Waves
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