問題詳情

40. A block with a speaker bolted to it is connected to a spring having spring constant k = 20N / mas shown in figure. The total mass of the block and speaker is 5 kg, and the amplitude of thisunit’s motion is 0.5 m. The speaker emits sound waves of frequency 440 Hz. Determine thehighest frequency heard by the person to the right of the speaker. (Assume that the speed of soundis 343ms)


(A) 481 Hz
(B) 471 Hz
(C) 461 Hz
(D) 451 Hz
(E) 441 Hz

參考答案

答案：E
難度：計算中-1
書單：沒有書單，新增