No.4 dan 5 Buat cara y

dik :
f= 5Hz
n= 2,25
l = 45

dit ?
a) amplitudo = 8 cm (simpangan terbesar)
b)lamda = l /n = 45/ 2,25 = 20 cm
c) v = lamda x frekuensi
20 x 5 = 100

no 5

f = 6 Hz
l = 60
n =2

a) lamda = l/n = 60/2 = 30
b) lamda x frekuensi
30 x 6 = 180