本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理
[问答题]
Give some examples o8nh:h qw --sb97yr xugf ovl:*5fleb 5*e/ r-(lcm np )zcwaln( everyday vibrating objects. Which exhibit SHM, at least appro/c5nlbcl:v e*l rp(wf*(ez-m o5)lna ximately?
参考答案: The blades in an electric shaver vibrate, approximately in SHM. The speakers in a stereo system vibrate, but usually in a very complicated way since many notes are being sounded at the same time. A piano string vibrates when struck, in approximately SHM. The pistons in a car engine oscillate, in approximately SHM. The free end of a diving board oscillates after a diver jumps, in approximately SHM.
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