gc textbook chapter 12 Sound (id: 1ba6b3c0a)

本题目来源于试卷: gc textbook chapter 12 Sound，类别为 通用国际物理

[填空题]
A piano tuner hears one beat enr(mo4s*/;o 3,0nn5cnyi c.ety dsvjvery 2.0 s when trying to py5u2p+wu2sv+0s 7nl irx qk eh7xj.e; -(ydfadjust two strings, one of which is sounding 440 Hzpl5wriq( +-xh;x2 .2yse 7nfd sye ukv 07pu+j. How far off in frequency is the other string? ±    Hz

参考答案: 0.5±2%


本题详细解析:

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