Physics 227 HW II 1 Autumn 2008
Physics 227 - Autumn 2008
HW II
Due Friday 10/10/08
Except as noted, all problems are in the class text, Boas.
Example problems: Not to be turned in – solutions can be found at the back of the
book or in the companion volume of solved problems. See also Appendix B to the
relevant lecture.
§1.13: (11 in Ed. 2), 27 (15 in Ed. 2)
§1.15: 17
§2.4: 11, 17
§2.5: 6, 43
Assigned problems: To be turned in. Problems A and B below will be graded like
the exercises from Boas. All graded problems are worth 5 points each. Problem C is
extra credit: doing extra credit problems do not change your score, but at the end of
the term can make the difference in borderline grade assignments.
§1.13: 26 (12 in Ed. 2) [Note that you are asked to check your result using
Mathematica. Please include enough output from your computer work to confirm
that you checked your work. Note also that Mathematica has a useful command
Series[].]
§1.15: 23(d) (21 in Ed. 2) [Again check your result using Mathematica.], 28
§2.4: 4 [Again check your result using Mathematica.]
§2.5: 33 [Again check your result using Mathematica.]
A. (5 points) Remember that a particle of mass M on a spring with spring constant k
and equilibrium length
0
x
obeys Newton's law
,
dU
Mx dx
