Jawabanmu

2014-04-16T21:45:41+07:00
V = f . lamda

asumsi n maksudnya banyak getaran
maka f = 30/2 = 15 Hz

4.5 = 15* lamda

lamda = ?????


vote jawaban terbaik
2014-04-16T22:02:00+07:00
F = n/t
f = 30/2
f = 15Hz

v = λ.f
4,5 = λ.15
λ = 4,5/15
λ = 0,3 m