Odpowiedź:
n = 810 obrotów
t = 1 min
-----------------------
f = ?
f = n/t = 810/60s = 13,5 Hz
Odp. f = 13,5 Hz
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Odpowiedź:
n = 810 obrotów
t = 1 min
-----------------------
f = ?
f = n/t = 810/60s = 13,5 Hz
Odp. f = 13,5 Hz