Page 45 - Materi Gelombang Bunyi Kelas XI
P. 45
1 ×0,05
125 = √
1,6 10 −3
⁄
200 = √ × 50
2
⁄
⁄
(200 ) = × 50
2
2
40000 ⁄ = × 50
⁄
2
40000 ⁄ 2
=
⁄
50
2
⁄
= 800 = 800 (terbukti)
b. Pengecekan satuan
= √
2
1 ×
= √
1 −2 ×
= √
1
2 −2
= √
1
= × −1
= −1
= (terbukti)
40
