c=4200(Дж/кг*С);
Q=U^2*t/R;
mc(t2-t1)=U^2*t/R;
t=mc(t2-t1)*R/U^2;
t=0,5*4200(0-(-5))*1,8/1296=14,58(c)
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c=4200(Дж/кг*С);
Q=U^2*t/R;
mc(t2-t1)=U^2*t/R;
t=mc(t2-t1)*R/U^2;
t=0,5*4200(0-(-5))*1,8/1296=14,58(c)