Xiaosun bought a whole box of milk from the supermarket. As shown in the picture, there are 12 bags of milk in each box of this specification. The weight of each bag of milk is 250 grams. After careful inspection, he found that the words "net content: 243ml" were printed on the package (1) The density of this kind of milk. (2) when the whole box of milk is placed on the horizontal ground, the contact area between the box and the ground is 0.05m2, what is the pressure of this box of milk on the ground? (two decimal places shall be reserved after the decimal point, regardless of the quality of boxes and bags.)

Xiaosun bought a whole box of milk from the supermarket. As shown in the picture, there are 12 bags of milk in each box of this specification. The weight of each bag of milk is 250 grams. After careful inspection, he found that the words "net content: 243ml" were printed on the package (1) The density of this kind of milk. (2) when the whole box of milk is placed on the horizontal ground, the contact area between the box and the ground is 0.05m2, what is the pressure of this box of milk on the ground? (two decimal places shall be reserved after the decimal point, regardless of the quality of boxes and bags.)

(1) The weight of each package of milk is 250g, i.e. M = 250g; the packaging bag is printed with "net content: 243ml", i.e. volume of each package of milk v = 243ml = 243cm3; the density of milk: ρ = MV = 250g243cm3 = 1.03g/cm3 = 1.03 × 103kg / m3. A: the density of this kind of milk is 1.03 × 103kg / m3