tolong bantu jawab yg bner ya, nanti dijadiin jawaban terbaik!
No. 3
d = [tex]\frac{vt}{2}[/tex]
d = kedalaman laut
v = kecepatan rambat
t = waktu rambat
d = [tex]\frac{1400 x 0,15}{2}[/tex]
d = [tex]\frac{210}{2}[/tex]
d = 105 m
No. 4
[tex]\lambda = \frac{v}{f}[/tex]
[tex]\lambda[/tex] = panjang gelombang
v = kecepatan gelombang
f = frekuensi gelombang
120 m = [tex]\frac{3 x 10^{8} }{f}[/tex]
f = 3 x [tex]10^{8}[/tex] / 120 m
f = 300000000 / 120 m
f = 2500000 Hz
[answer.2.content]
