Physics Unit11: Vibrations and Waves (id: 025ca19d7)

本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 通用国际物理

[单选题]
What is the wave speed if a wave eszwui f+ 5n9q)jc+v8zx;vj- has a frequency of 12 Hz and a wavelength of 3.+qjc8zxnj;i9fv zwv)-+e 5us9kjqgfa-ux.9pi o+f2t6g-9t k m her50af9-rh p6.99xj-tgiq ot 5ugemfk2k + m?

A. 4.0 m/s
B. 9.0 m/s
C. 15 m/s
D. 36 m/s


参考答案:  D


本题详细解析: 暂无

微信扫一扫，分享更方便