Odpowiedzi

2010-03-29T16:58:14+02:00
Lambda = 10 m
n = 20
t = 1 min= 60 s
V = ?
1. obl. częstotliwość
f = n/t
f = 20/60 s
f = 1/3 s = 1/3 Hz
2. obl V
V = lambda /T
T = 1/f
V = lambda * f
V = 10 m* 1/3 1/s
V = 10/3 m/s
V = 3,3 m/s