Ответ:
2). A = mgh = 800*100*4 = 32000 = 32 кДж
[А]
3). N = A/t; A = Nt = 50*10³Вт*120c = 6 МДж
[Б]
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Ответ:
2). A = mgh = 800*100*4 = 32000 = 32 кДж
[А]
3). N = A/t; A = Nt = 50*10³Вт*120c = 6 МДж
[Б]