质量=密度*体积.
长方体的体积=边长*边长*边长=0.475*0.425*0.115=0.023215625
圆柱体的体积=底面积*高=〔(0.165/2)*(0.165/2)*3.14〕*0.475*2=0.2030304374
两个体积差=0.00291258126 M^3
质量=密度*体积=40*0.00291258126=0.1165032504 KG
质量=密度*体积.
长方体的体积=边长*边长*边长=0.475*0.425*0.115=0.023215625
圆柱体的体积=底面积*高=〔(0.165/2)*(0.165/2)*3.14〕*0.475*2=0.2030304374
两个体积差=0.00291258126 M^3
质量=密度*体积=40*0.00291258126=0.1165032504 KG