已知 F1=69N,F2=71N,V=0.001m^3,
求ρ液.
G水排=F浮1=ρ水gV=10N,
G球=F1+F浮1=79N,
F浮2=G球-F2=8N
F浮2=ρ液gV,F浮1=ρ水gV,
F浮2/F浮1=ρ液/ρ水=0.8,则 ρ液=0.8g/cm^3
已知 F1=69N,F2=71N,V=0.001m^3,
求ρ液.
G水排=F浮1=ρ水gV=10N,
G球=F1+F浮1=79N,
F浮2=G球-F2=8N
F浮2=ρ液gV,F浮1=ρ水gV,
F浮2/F浮1=ρ液/ρ水=0.8,则 ρ液=0.8g/cm^3