Question

Tolong kerjakan ya nomor 4 dan 5, pake cara,!

Answer 1

Verified answer

Nomor 4
λ = 2 gelombang / 2 m = 1 meter
f = 340 Hertz
v?

penyelesaian:
v = λ . f

v = 1 . 340

v = 340 m/s

nomor 5
t1 = 0,7 sekon
t2 = 0,4 sekon
v = 340 m/s
s?

penyelesaian:
s = v . (t1 + t2) / 2

s = 340 . (0,7 + 0,4) / 2

s = 170 . 1,1 / 2

s = 187 meter