寫作批改
VIP與詳解卡管理
私人筆記( 0 )
32. A uniform cord has the mass per unit..-阿摩線上測驗
|
|
|
32. A uniform cord has the mass per unit length λ and it is arranged as that shown in the figure. Here
the tension is maintained by suspending an object of mass M from one end. What is the speed of
a pulse on the cord if the tension force is not affected by the mass of the cord? (Gravitational
acceleration is g)
(A) 
(B) 
(C) 
(D) 
(E) 