6.下列几个方程,表示质点振动为拍现象的是Ay=Acos(wt ) Bcos(ut B y=Acos200t Bcos(201t )A、=A cos wt, y=A2 sin(t ,B、x A cos wt, y=A cost
6.下列几个方程,表示质点振动为拍现象的是Ay=Acos(wt ) Bcos(ut B y=Acos200t Bcos(201t )
A、=A cos wt, y=A2 sin(t ,
B、x A cos wt, y=A cost
发布时间:2025-05-21 17:37:26