E=(F/S)/(x/l) S=пR^2=0.04*10^(-6)*3.14=0.1256*10^(-6) квадр.метров
Е=(50*10^6/0,1256)/0.01=4*10^6=4000000
E=(F/S)/(x/l) S=пR^2=0.04*10^(-6)*3.14=0.1256*10^(-6) квадр.метров
Е=(50*10^6/0,1256)/0.01=4*10^6=4000000