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20-05-2024
Chemistry

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ККД двигуна 75 %. Насос підіймає 9 кг води з глибини 44 м за 8 с. Визначте напругу в мережі, від якої живиться двигун насоса, якщо сила струму в обмотці двигуна дорівнює 12 А.

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