問題詳情

14. A standing wave is oscillating at 690 Hz on a string, as shown inthe figure. What is the speed of traveling waves on this string?


(A) 140 m/s
(B) 210 m/s
(C) 280 m/s
(D) 340 m/'s
(E) 410 m/s.60cm

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增