[tex]F_n=10 \ N \\ S_1=1 \ cm^2=0,000 \ 1 \ m^2 \\ l_2=0,1 \ mm=0,000 \ 1 \ m \\ \boxed{p_1-?} \\ \boxed{p_2-?} \\ \bold{Rezolvare:} \\ \boxed{p= \frac{F_n}{S} } \\ p_1= \frac{F_n}{S_1} = \frac{10 \ N}{0,000 \ 1 \ m^2} \\ \Rightarrow \boxed{p_1=100 \ 000 \ Pa} \\ S_2=l_2^2 \\ S_2=(0,000 \ 1 \ m)^2 \\ S_2=0,000 \ 000 \ 01 \ m^2 \\ p_2= \frac{F_n}{S_2} = \frac{10 \ N}{0,000 \ 000 \ 01 \ m^2} \\ \Rightarrow \boxed{p_2=1 \ 000 \ 000 \ 000 \ Pa} [/tex]
