Какую работу совершает двигатель мощностью 90 квт за 51 минут?
rona3
3
23.09.2019 06:30
51
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2
Найти: А - ?
Решение:
для нахождения работы выразим её из формулы мощности:
N = \frac{A}{t} ⇒ A = Nt = 90.000 * 3.060 = 275.400.000 Дж = 275,4 МДж
ответ: 275,4 МДж