September 2021 0 7 Report
1) I = 5А t = 45мин A = 162 Дж R = ? 2) На зеркало падает луч 30 градусов. Каков угол отражения луча? 3) V (вода) = 2,5 л t =15 мин c = 4.200 Дж/кг C T1 = 20 C T2 = 100 C I = 10A И = 120В КПД = ? Срочно!!
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