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2
20 1
= ( )
2 2
20 1 2
= ( )
2 10
20 1
= ( )
2 100
1. = 20 . 100
2
F2 = 2000 N

4. Diketahui :
3
ρ minyak = 0,8 g/cm
Ditanya

ρb = … ?

FA minyak + FA air = W benda

ρ minyak, ,g, V bm + ρ air, ,g, V = ρ b, ,g, V b
ba
0,8 . 10. 0,3V + 1. 10 . 0,5 V = ρ b,. 10. V b
b
b
0,24 + 5 = ρ b,.

ρ b,. = 0,74 g/cm 3

24 | E-MODUL BERBASIS STEM