已知:m瓶= 200g m瓶+m水= 800g m瓶+m油= 600g ρ水=1g/cm3
m水= 800g - 200g = 600g
瓶子的体积V= m水/ρ水 = 600 cm3
m油= 600g - 200g = 400g
油的密度ρ油 = m油/V = 0.67 g/cm3
已知:m瓶= 200g m瓶+m水= 800g m瓶+m油= 600g ρ水=1g/cm3
m水= 800g - 200g = 600g
瓶子的体积V= m水/ρ水 = 600 cm3
m油= 600g - 200g = 400g
油的密度ρ油 = m油/V = 0.67 g/cm3