Odpowiedzi

2010-03-25T16:58:35+01:00
Zad 4.35
V = 20 cm3
ρ = 1g/cm3
g = 10N/kg = 1N/100g

Fw = ρ * g * V
Fw = 1g/cm3 * 1N/100g * 20cm3 = 0,2 N

Zad 4.37
Fw = 4N
ρ = 1g/cm3
g = 10 N/kg = 1N/100g
V =?

Fw = ρ * g * V
V = 1g/cm3 * 1N/100g : 4N = 4 * 100 = 400cm3
V = 400cm3
2 5 2