Physics
Physics, 17.10.2021 08:30, dondre54

quan sát dòng nước chảy chậm từ vòi nước xuống dưới, ta thấy nước bị thắt lại tức là ở gần vòi tiết diện dòng nước lớn hơn tiết diện phía dưới, tại sao?

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quan sát dòng nước chảy chậm từ vòi nước xuống dưới, ta thấy nước bị thắt lại tức là ở gần vòi tiết...

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