F浮=G-F=1.96-0.98=0.98N
V=100cm^3 m=G/g=1.96/9.8=0.2kg=200g
ρ =m/v=2g/cm^3=2*10^3kg/m^3
F浮=ρ 液 gV 排=ρ 液 gV
ρ 液=F浮/ gV =0.98/(9.8*100*10^-6)=1*10^3kg/m^3
F浮=G-F=1.96-0.98=0.98N
V=100cm^3 m=G/g=1.96/9.8=0.2kg=200g
ρ =m/v=2g/cm^3=2*10^3kg/m^3
F浮=ρ 液 gV 排=ρ 液 gV
ρ 液=F浮/ gV =0.98/(9.8*100*10^-6)=1*10^3kg/m^3