大学物理作业求助!
2个回答
展开全部
1.
(1)A = 1.2*10^-3 m
ω = 10^5 π = 2π ν,ν = 5*10^4 Hz
200 x = ω x / u,u = 500π m/s
(2)ω (8.05 - 8.) / u = 10π rad
2.
(1)λ = 0.40 m
T = λ / u = 5 s
ν = 1/T = 0.2 Hz
(2)A = 0.04 m, ω = 2π/T = 0.4π, φ = π/2
y = 0.04 cos(0.4 π t - 0.4π x/u + π/2)
= 0.04 cos(0.4 π t - 5π x + π/2)
(1)A = 1.2*10^-3 m
ω = 10^5 π = 2π ν,ν = 5*10^4 Hz
200 x = ω x / u,u = 500π m/s
(2)ω (8.05 - 8.) / u = 10π rad
2.
(1)λ = 0.40 m
T = λ / u = 5 s
ν = 1/T = 0.2 Hz
(2)A = 0.04 m, ω = 2π/T = 0.4π, φ = π/2
y = 0.04 cos(0.4 π t - 0.4π x/u + π/2)
= 0.04 cos(0.4 π t - 5π x + π/2)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询