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Spring 2008  Phys 5A  4/21  Lecture 2.14  50 minutes
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"The pendulum of the mind alternates between sense 
and nonsense, not between right and wrong."
--Carl Jung

TODAY (*.pdf)
Pick up your Quiz 5; scores posted online
Discussion of selected questions at waiferx.blogspot.com

4/18 opinion results
     Preparation/understanding of material?

Chs. 10.6, 10.8: SHM (continued)
     Ex: Conceptual Question 10.18, Multiple-Choice Questions 11-20
         (Cf. "Chain of Pain" calculus graph relations (*.pdf))
         (Determine other graphs for homework)
     Ex: Problem 11.27 (extended)
         "Masses on springs" 
         (School of Physics and Astronomy, University of Minnesota)
     Ex: Problem 11.58 (extended)
         "Masses on strings"
         (ibid)
     Ex: Problem 10.60
         "Different strings"
         (ibid)
     
NEXT TIME 
Homework
     Choose which in-class clicker question graphs (A)-(E) represents:
              kinetic energy as a function of time
              acceleration as a function of time
     Problems 10.27 (for practice only)
              10.28 (express answer in m/s)
              10.29 (for practice only)
              10.30 (express answer in m/s)
              10.31 (for practice only)
              10.32(a)
              10.61 (for practice only)
     Comprehensive Problem 10.76 ("vibration" = swinging back-and-forth motion)
              
Read Chs. 11.2 (transverse, longitudinal waves)
          11.3 (linear mass density; wave speed (Eq. (11-4))
          11.4 (Fig. 11.7; period, frequency, wavelength, amplitude, crest, trough)