12) m=0.2 L=3.4*10^5 Q=m*L=0.2*3.4*10^5=68 кДж (Г)
13) m=15 q=30*10^6 Q=m*q=15*30*10^6=450 МДж (В)
14) m=0.2 t1=0 c=500 Q=6*10^3 t2-t1=Q/(c*m)=3*10^3/(500*0.2)=60 (Д)
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12) m=0.2 L=3.4*10^5 Q=m*L=0.2*3.4*10^5=68 кДж (Г)
13) m=15 q=30*10^6 Q=m*q=15*30*10^6=450 МДж (В)
14) m=0.2 t1=0 c=500 Q=6*10^3 t2-t1=Q/(c*m)=3*10^3/(500*0.2)=60 (Д)
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