V = V₁ + V₂ = 4V₁
V = m/ρ
V₂ = 3V₁
3m₁/ρ₁ = m₂/ρ₂
3m₁ρ₂/ρ₁ = m₂
3,76m₁ = m₂
m = m₁ + m₂ = 4,76m₁
4,76m₁/ρ = m₁/ρ₁ + 3,76m₁/ρ₂
4,76/ρ = 1/ρ₁ + 3,76/ρ₂
4,76/ρ = (ρ₂+3,76ρ₁)/ρ₁ρ₂
ρ = 4,76ρ₁ρ₂/(ρ₂+3,76ρ₁)
ρ = 4,76*7.1*8.9/(8.9 +3,76*7,1) ≈ 8,5 г/см³
Объяснение:
МОЖНО ЛУЧШИЙ ОТВЕТ?
V = V₁ + V₂ = 4V₁
V = m/ρ
V₂ = 3V₁
3m₁/ρ₁ = m₂/ρ₂
3m₁ρ₂/ρ₁ = m₂
3,76m₁ = m₂
m = m₁ + m₂ = 4,76m₁
4,76m₁/ρ = m₁/ρ₁ + 3,76m₁/ρ₂
4,76/ρ = 1/ρ₁ + 3,76/ρ₂
4,76/ρ = (ρ₂+3,76ρ₁)/ρ₁ρ₂
ρ = 4,76ρ₁ρ₂/(ρ₂+3,76ρ₁)
ρ = 4,76*7.1*8.9/(8.9 +3,76*7,1) ≈ 8,5 г/см³
Объяснение:
МОЖНО ЛУЧШИЙ ОТВЕТ?