Question

Tolong pakai cara nya

Answer 1

Verified answer

Nomor 10
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Diket :
massa jenis air, ρ1 = 1 gram/cm³
massa jenis minyak, ρ2 = 0,8 gram/cm³
panjang sisi kubus, s = 10 cm → maka volume, V = s³ = 10³ = 1000 cm³
bagian kubus yg tercelup di air, V1 = 20%V = 20%.1000 = 200 cm³
maka sisanya tercelup di minyak, V2 = (1000 - 200) = 800 cm³

Tanya :
massa kubus kayu, m = __?

Jawab :
w = Fa1 + Fa2
m.g = ρ1.g.V1 + ρ2.g.V2
m = ρ1.V1 + ρ2.V2
m = 1.200 + 0,8.800
m = 200 + 640
m = 840 gram 

Jawaban : C

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