初三物理浮力计算问题亟待解决
1) p=ρgh=1×10?kg/m?×10N/kg×0.01m = 100 pa
2)鸡蛋漂浮时,ρ盐水略大于ρ鸡蛋,故近似视为ρ盐水= ρ鸡蛋。
v蛋=100cm?×0.5cm=50cm?
ρ盐水= ρ鸡蛋=m/V鸡蛋=55g/50cm?=1.1g/cm?
你要好好学习!~~
2)鸡蛋漂浮时,ρ盐水略大于ρ鸡蛋,故近似视为ρ盐水= ρ鸡蛋。
v蛋=100cm?×0.5cm=50cm?
ρ盐水= ρ鸡蛋=m/V鸡蛋=55g/50cm?=1.1g/cm?
你要好好学习!~~