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]
If a string is vibrating in three segments, ar2ev n k0ka+im7e there any il;((nb7rq c(z9qp v iiv h0j1places you could touch it with iqnv0 zv7(1h;(lip(cbjr qi9 a knife blade without disturbing the motion?
参考答案: The string could be touched at the location of a node without disturbing the motion, because the nodes do not move. A string vibrating in three segments has 2 nodes in addition to the ones at the ends. See the diagram.
本题详细解析:
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