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Определите количество теплоты,отданное двигателем внутреннего сгорония холодильнику, если его КПД равен 30%,а полезная работа 450Дж.
Ответы 2
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спасибо !)
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Автор:
kayley - 4 года назад
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0
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η=0.3 (30%) A=450 Дж Qx=?===η=A/QнQн=A+QxQx=A*(1/η-1)=450*(1/0.3-1)=1050 Дж============================
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Автор:
leannakent - 4 года назад
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0
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Although modern football began in nineteenth-century England, the English didn’t invent football: they simply gave it rules. Human beings have always liked kicking round objects. Two and half thousands years ago the Chinese played a game called Tsu-Chu, which means ‘to kick a ball made of leather with the feet’.
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