October 2021 1 13 Report
В двигателе внутреннего сгорания сожжен 1 кг бензина. За это время он совершил работу, равную 13,8·106 Дж. Каков КПД двигателя?

А. 20 % Б. 25 % В. 30 %
срочноооо\

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