gc textbook chapter 12 Sound (id: 4ea73b694)

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]
You have three tuning forks, A, B, and C. Fork cfr26-sw8pz qbh/:io B wzm fp(/t;x: yhas a frequency of 441 Hz; when A and B are sounded together, a beat frequency of 3 Hz is heard. When B and C are sounded together, the beat f fmzw;:yp (x/trequency is 4 Hz. What are the possible frequencies of A and C? What beat frequencies are possible when A and C are sounded together?$f_A$ =    Hz or    Hz
$f_C$ =    Hz or    Hz
|$f_A$-$f_C$|    Hz or    Hz

参考答案:
空格1: {438|444}±2%  空格2: {438|444}±2%  空格3: {437|445}±2%  空格4: {437|445}±2%  空格5: {1|7}±2%  空格6: {1|7}±2% 


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