R123=R1+(R2*R3/R2+R3)=1,5Ом
Rэкв=R6+((R123*R4*R5)/R123+R4+R5)=1,43Ом
P*V*M=m*R*T
V=m*R*T/P*M=1*8,31*300/100*10^3*2*10^-3=12,5 м3
Em=U/k=N*B*S*2*π*v
S=U/(N*k*B*2*π*v)=220/)50*0.1*1.5*2*3.14*50)=0.093 м2
==========================================
S=V^2/2*k*g
k=V^2/2*k*g
k1=225/2*20*10=0,56
k2=225/2*75*10=0,15