Physics, 04.12.2020 16:30 angeline2004

Визначте ККД двигуна трактора (у відсотках), яким для виконання роботи 1,89∙106 Дж знадобилося 1,5 кг палива з питомою теплотою згоряння 4,2∙106 Дж/кг.

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Визначте ККД двигуна трактора (у відсотках), яким для виконання роботи 1,89∙106 Дж знадобилося 1,5 к...