no 12&14 plss bantu aku jawab soal

12) P=4.000 Pa
A=0,5 dm² = 0,005 m²
F = P.A = 4.000 × 0,005 = 20 N (B)

14) Bagian yg tercelup = ρbenda/ρair = 0,8/1 = 4/5
Mk bagian yg muncul = 1 - 4/5 = 1/5 (A)