6.25 三个同方向、同频率的简谐振动为-|||-_(1)=0.08cos (314t+dfrac (pi )(6))-|||-_(2)=0.08cos (314t+dfrac (pi )(2))-|||-_(3)=0.08cos (314t+dfrac (5pi )(6))-|||-求:(1)合振动的角频率、振幅、初相及振动表达式;-|||-(2)合振动由初始位置运动到 =dfrac (sqrt {2)}(2)A (A为合振动振幅)所需最短时间。

10.-|||-两同方向同频率的简谐振动的振动方程为 _(1)=6cos (5t+dfrac (pi )(2)) (SI), _(2)=2cos (5t-dfr

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

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

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

,两个同方向同频率的简谐振动,其振动表达式分别_(1)=0.6cos (5t+dfrac (pi )(2))(m),_(1)=0.6cos (5t+dfrac

两个同方向、同频率的简谐振动,它们的振动表达式分别为-|||-_(1)=0.30cos (10t+dfrac (3)(4)pi ) _(2)=0.40cos (

已知一简谐振动_(1)=3cos (5t+dfrac (2)(3)pi ),另一个同方向简谐振动_(1)=3cos (5t+dfrac (2)(3)pi )若令

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.

我想要详细答案！ 两个同方向、同频率的简谐振动,它们的振动表达式分别为-|||-_(1)=0.30cos (10t+dfrac (3)(4)pi ) , _(2

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