N = ηvmq/S
NS = ηvmq,
η = NS/(vmq),
1/100%*η = 25000 * 10^5/(25 * 9 * 44 * 10^6) = 0.25.
η = 0.25*100% = 25%
Ответ: 25%.
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N = ηvmq/S
NS = ηvmq,
η = NS/(vmq),
1/100%*η = 25000 * 10^5/(25 * 9 * 44 * 10^6) = 0.25.
η = 0.25*100% = 25%
Ответ: 25%.
v = 90 км/ч = 25м/c
S = 100 км = 10^5м
m = 9кг
N = 25 кВт = 25000 Вт
q = 44 МДж = 44000000 Дж
η — ?