1:V=m/ρ=8/0.8=10dm^3 (800kg/m^3=0.8kg/dm^3)
2:P=G总/S=(2+8)*10/0.01=10^4Pa
3:Δh=ΔV/S=0.0002/0.01=0.02m
ΔP=ρgΔh=800*10*0.02=160Pa
1:V=m/ρ=8/0.8=10dm^3 (800kg/m^3=0.8kg/dm^3)
2:P=G总/S=(2+8)*10/0.01=10^4Pa
3:Δh=ΔV/S=0.0002/0.01=0.02m
ΔP=ρgΔh=800*10*0.02=160Pa