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Анжелина98
@Анжелина98
November 2021
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Помогите пожалуйста 4 3
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ElkinaVera
дано: N = 120Н t = 15c S = 20м N - ?
3) N = A/t => N = (F*S)/t N = 120*20/15 = 160 Вт
дано: F = 400Н V = 0.8м/c t = 2ч = 7200с A - ?
4) N = F*V N = 400*0.8 = 320 Вт A = N*t A = 320*7200 = 2304000 Дж (2.3МДж)
1 votes
Thanks 1
ElkinaVera
одной формулой?
ElkinaVera
1 мин
ElkinaVera
так?
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Answers & Comments
3) N = A/t => N = (F*S)/t N = 120*20/15 = 160 Вт
дано: F = 400Н V = 0.8м/c t = 2ч = 7200с A - ?
4) N = F*V N = 400*0.8 = 320 Вт A = N*t A = 320*7200 = 2304000 Дж (2.3МДж)