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  • 15-01-2024
  • Physics
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Người ta thổi không khí qua một ống AB cứ mỗi phút có 15l không khí chảy qua ống . Diện tích thiết diễn phần to A là 2 cm^2 , phần nhỏ B và ống MN là 0.5 cm^2. Cho biết khối lượng riêng của không khí là 1,32 kg/m^3 và nước là 1000kg/m^3 . Hãy tính mực nước chênh lệch h của ống

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