Ответ:
x=0,5cos50πt
x=Acos(ωt)
ω=50π
T=2π/ω=2π/50π=0,04c
v=1/T=1/0,04c=25Гц
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Ответ:
x=0,5cos50πt
x=Acos(ωt)
ω=50π
T=2π/ω=2π/50π=0,04c
v=1/T=1/0,04c=25Гц