Răspuns :
Răspuns:
d = 2700kg/m³ = 2,7 g/cm³
d = m/V => m = d×V
V = l³ = (10cm)³ = 1000cm³
m = 2,7g/cm³×1000cm³ = 2700 grame = 2,7 kg
G = m×g
g ≈ 10N/kg
G = 2,7kg×10N/kg = 27 N
Răspuns:
ρ = m/v
ρ = m/vv = l³ = (10cm)³ = 1000cm³
ρ = m/vv = l³ = (10cm)³ = 1000cm³m = ρ×v = 2,7g/cm³ × 1000cm³ = 2700 g = 2,7 kg
ρ = m/vv = l³ = (10cm)³ = 1000cm³m = ρ×v = 2,7g/cm³ × 1000cm³ = 2700 g = 2,7 kgG = m×g = 2,7kg × 9,8m/s² = 26,46 N