Reading Assignment:
  Today (Wednesday) we completed Sections 10.4 and 10.5.
  On Friday we will cover the wave equation, Section 10.6.
    Read Section 10.5 if you haven't already, and 10.6 
    as well.
 
Problems (due Friday 3/6):
  Section 10.4 : 8,11,13,18,22,33 or 34
  Section 10.5 : 3 (graded out of 4 points, not 2; include
                    complete discussion of the derivation of
                    the solution)