Jawabanmu

2014-05-27T20:19:54+07:00
N = 2000 x
t = 30 menit = 1800 detik

ditanya = frekuensi ?
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Jawab
F = n/t
F = 2000 / 1800
F = 1 1/9 Hz
1 3 1
2014-05-27T20:20:18+07:00
Dik : n=2000
       t = 30 menit = 1800 detik
Dit: f?
jb: f = n/t
      = 2000/1800
       = 10/9