Network
v = λ/T
= 16/4
= 4 m/s
9. d
1/s + 1/s' = 1/f
1/18 + 1/s' = 1/10
1/s' = 1/10 - 1/18
1/s' = (9 - 5)/90
1/s' = 4/90
s' = 90/4
s' = 22,5
M = h'/h = s'/s
h'/6 = 22,5/18
h' = (22,5 x 6)/18
h' = 7,5
10. a
1/RP = 1/R2 + 1/R3
1/RP = 1/3 + 1/6
1/RP = 2/6 + 1/6
1/RP = 3/6
RP = 6/3 = 2 Ω
R BD = R1 + RP
R BD = 2 Ω + 2 Ω
R BD = 4 Ω
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11. b (boraks pengawet berbahaya jika dikonsumsi tubuh)
Zat aditif sintetis yang aman dikonsumsi:
