Q=90*10^9 Дж
m=2*10^3 кг
q=?
===
Q=q*m q=Q/m=90*10^9/2*10^3=45*10^6 Дж/кг (45 МДж/кг)
==================
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Q=90*10^9 Дж
m=2*10^3 кг
q=?
===
Q=q*m q=Q/m=90*10^9/2*10^3=45*10^6 Дж/кг (45 МДж/кг)
==================