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Physics, 14.06.2021 06:20 ewaltz74

Bơm nước từ giếng lên bể. Biết giếng sâu 4m, bơm đặt trên miệng giếng, bơm cách bể cao 5m, tổng chiều dài đường ống là 20m. Đường kính ống đẩy bằng đường kính ống ống hút 34, bỏ qua ma sát cục bộ, hệ số ma sát doc đường =0,013 Lưu lượng nước bơm là 2l/s. Tính áp suất toàn phần của bơm cần khắc phục. Tính công suất bơm biết hiệu suất bơm là 0,7. Tính công suất động cơ biết rằng nguồn điện là ổn định.​

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