Jawabanmu

2014-04-07T14:40:13+07:00
Lamda = 0,05
v = 3.10^2m/s
f = ?
f = v/lamda
  = 3.10^2/5.10^-2
  = 3.10^2+2/5
  = 3.10^4/5
  =30000/5
  =6000Hz
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