Question

Se amesteca volume egale din lichide diferite,de densitati p1 si p2.Ce densitate are amestecul?

Answer 1

[tex]p= \frac{m1+m2}{V1+V2} \\ p= \frac{p1*v1+p2*v2}{2*V1} \\ p= \frac{v1*(p1+p1)}{2*V1} \\ p= \frac{p1+p2}{2} [/tex]