Question

初中物理，求解答！！！！！！！

Answer 1

 1毫升=0.000001立方米
          m酒=pv=0.9x1000㎏/m³x0.000004m³=0.0036㎏  m水=X0.000004m³=0.004㎏    △m=0.004-0.0036=0.0004㎏

Answer 2

p酒=0.9*10³kg/m³=0.9g/cm³=0.9g/ml ，m酒=p酒*v=0.9*400=360g。p水=1g/ml，m水=1*400=400g，400-360=40g

Answer 3

400×0.46×0.9×1000+100×0.54×1000