Question

Proszę o pomoc :)
1. V=340m/s t=5s *Oblicz lambdę
2. Lambda=4m v=4 m/s * Oblicz częstotliwość

Answer 1

Zad.1.
V = 340 m/s
T = 5 s
λ = ?
V = λ / T
λ = V * T
λ = 340 m/s * 5 s = 1700 m

zad.2.
λ = 4 m
V = 4 m/s
f = ?
V = λ / T    ale T = 1 / f
 V = λ * f  /: λ
f = V / λ
f = 4 m/s / 4 m = 1 Hz
[ Hz ] = [ 1/s ]