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Fall 2007  Phys 5A  11/26  Lecture 2.18  50 minutes
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"I did never know so full a voice issue from so empty a heart: 
but the saying is true, 'The empty vessel makes the greatest sound.'"
--William Shakespeare

"As empty vessels make the loudest sound, so they that have least with 
are the greatest babblers."
--Plato

TODAY (*.pdf)
Pick up your Quiz 6; scores posted online
Discussion of selected questions at waiferx.blogspot.com

11/19 opinion results
     Preparation/understanding of material?

Ch. 12.4: Standing Sound Waves
     Ex: Trumpet Standing Sound Waves
         (Steve Erickson, Lawsuit, Davis, CA)
     Ex: Problem 12.20 (extended, conceptual) 
Ch. 12.8: The Doppler Effect
     Ex: Doppler Effect
         (Delsea Regional High School, Franklinville, NJ) 
     Ex: Problem 12.40
     
ANNOUNCEMENT
No class Wednesday, 11/28
No office hours Wednesday, 11/28
(Dean of Student Learning hiring committee meeting all day)

Homework (assigned, not for credit)
     Problems 12.19, 12.21, 12.35, 12.39, 12.41

NEXT TIME
Midterm 2 Announcements
     Friday, 11/30, 10:30-11:20 AM
     Bring your scientific calculator
     **USE YOUR OWN UNIQUE 4-DIGIT P.I.N.**
     **ENERGY/MOMENTUM/ROTATION/FLUID/SHM/WAVE EQUATIONS PROVIDED**
     **KNOW WHEN/HOW TO APPLY EQUATIONS**
     **CHS. 6.2, 7.7, 8.4, 9.8, 10.2, 10.7, 11.2, 11.10, 12.3, 12.4, 12.8** 
     Closed-book, closed-notes
     No Scantrons; circle/write answers directly on Midterm
     Five multiple-choice questions = 15 points
          No work needs to be shown; no partial credit
          (Three from Fall 2007 Quizzes 4-6)
     Two short-answer questions = 20 points
          (Cf. reading guide Chs. 6-12 conceptual questions)
          Partial credit given for relevant discussion
     Two worked-out problems = 40 points
          Partial credit given for approach and method
          (Cf. Fall 2007 HW Chs. 6-12 problems, lecture examples)
          (Hint: "two equations, two unknowns")        

NEXT NEXT TIME (Monday, 12/3)
Read Chs. 13.1-13.4 (no read-ahead questions)