gc textbook chapter 12 Sound (id: 986158efa)

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 tight guitar string has a frexf sr ok:sj/x41mjt.s/j,x0 qce., g7 vou0myquency of 540 Hz as itsff9+-xh wby *s third harmonic. What will be its fundamental frequency if it is fingeredx w fbs9h+-*yf at a length of only 60% of its original length?   Hz

参考答案: 300±2%


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