11-23 一质点质量为0.1kg,它同时参与互相垂直的两个振动,其振动表示式分别为-|||-=0.06cos (dfrac (pi )(3)t+dfrac (pi )(3)) , =0.03cos (dfrac (pi )(3)t-dfrac (pi )(3))-|||-试写出质点运动的轨迹方程,画出图形,并指明是左旋还是右旋。

已知两个同方向、同频率的简谐运动的运动的方程分别为： _(1)=0.06cos (2pi t+dfrac (pi )(3))(m) , _(1)=0.06cos

一质点同时参与同方向的简谐振动，它们的振动方程分别为_(1)=0.1cos (omega t+dfrac (pi )(4)), _(1)=0.1cos (ome

5.一质点同时参与两个在同一直线上的简谐振动:-|||-_(1)=0.04cos (2pi t+dfrac (pi )(2))m, _(2)=0.03cos (

两简谐振动的振动方程分别为_(1)=3cos (2pi t-dfrac (pi )(3)), _(2)=4cos (2pi t+dfrac (pi )(6))单

有两个振动方向相同的简谐振动,其振动方程分别为-|||-_(1)=10cos (2pi t+pi )cm, _(2)=10cos (2pi t+dfrac (p

32-5 一物体同时参与两个同方向的简谐振动:-|||-_(1)=0.04cos (2pi t+dfrac (1)(2)pi ) (SI单位), _(2)=0.

1 单选 已知两个同方向的简谐振动_(1)=2cos (1001pi t+dfrac (pi )(3)) __， _(1)=2cos (1001pi t+df

某质点参与_(1)=10cos (pi t-dfrac (pi )(2))cm 及 _(2)=20cos (pi t+dfrac (pi )(2))cm两个同方

【题目】某质点参与 _(1)=5cos (pi t-dfrac (pi )(2))cm 及-|||-_(2)=5cos (pi t+dfrac (pi )(2)

两列平面简谐波在一很长的弦上传播,设其方程为_(1)=0.03cos (pi t-dfrac (pi x)(2))和_(1)=0.03cos (pi t-dfr