Kak bantu Jawab plzz Ntar di follow Deh​

Jawaban:

1.

v = s/t

340 = 85/t

t = 85/340 = 0,25 s

karena jarak tempuh bunyi bolak-balik maka t = 2*0,25 = 0,5s

2.

t =3s  

v = s/t

300 = s/3

s = 900 m

3.

F/Fb = 32/45

352/Fb = 32/45

Fb = 352 * 45/32 = 495 Hz

4.

t = 4s jarak tempuh bunyi bolak-balik, untuk searah t = 2s

v =s/t

1500 = s/2

s = 1500*2 = 3000 m

Penjelasan: