Ответы на вопрос:
W=1/2*q^2/c1 c=(c1+c2) u1=u2=u=q/c=q/(c1+c2) w1=c1u^2/2=1/2*c1*q^2/(c1+c2)^2 w2=c2u^2/2=1/2*c2*q^2/(c1+c2)^2 q=w-w1-w2=1/2*q^2 *(1/c1 - c1/(c1+c2)^2-c2/(c1+c2)^2) = 1/2*q^2 *(1/c1 - 1/(c1+c2)) = 1/2*q^2 *c2/(c1*(c1+c2)) = w*c2/(c1+c2) w=q*(c1+c2)/c2=q*(c1/c2+1)= 171 * (15/20+1) мдж = 299,25 мдж ~ 300 мдж
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