Решение
N = A/t = E/t = mgh/t
N = 120•10•2/1,5 = 1600 Вт = 1,6 кВт
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Решение
N = A/t = E/t = mgh/t
N = 120•10•2/1,5 = 1600 Вт = 1,6 кВт