包邮物理学 (第5版)下册

table of content
chapter 9 oscillation
9-1 simple harmonic motion，amplitude，period and frequency，phase
1．simple harmonic motion2
2．amplitude
3．period and frequency
4．phase
5．the solution of constant a and
9--2 rotating vector
9-3 single pendulum and the physical pendulum
1．single pendulum
2．physical pendulum
9-4 energy in simple harmonic motion
9-5 superposition of simple harmonic motions
1．superposition of two simple harmonic motions with same frequency in the same direction