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Physics, 26.08.2021 09:40 destiniout04231

Tại một đập thủy điện, mực nước ngọt ở phía sau đập có chiều cao h = 15m so với miệng cống xả nước (dùng để xả nước ra phía trước đập khi mực nước quá cao, được đậy bằng một nắp cống ngăn nước ra ngoài). Tiết diện nắp ống xả thải bằng 30cm2 khối lượng riêng nước là 1000kg/m3, tính áp lực tác dụng lên nắp do chênh lệch áp suất giữa bên trong và bên ngoài đập nước?

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Tại một đập thủy điện, mực nước ngọt ở phía sau đập có chiều cao h = 15m so với miệng cống xả nước (...
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