冰的密度是0.9g/cm^3,熔化后质量不变:
m冰=ρ冰v=0.9g/cm^3×100cm^3=90g
水的体积为:v水=m/ρ水=90g/(1g/cm^3)=90cm^3
0.98/cm³*100cm³=90g这个式子中,前面是0.9g/cm^3,不是0.98
冰的密度是0.9g/cm^3,熔化后质量不变:
m冰=ρ冰v=0.9g/cm^3×100cm^3=90g
水的体积为:v水=m/ρ水=90g/(1g/cm^3)=90cm^3
0.98/cm³*100cm³=90g这个式子中,前面是0.9g/cm^3,不是0.98