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ngothigiang94
2 năm trước
1. Một hồ cao hình khối chữ nhật chứa nước. Cột nước trong hồ có chiều cao 300cm.Tính áp suất của nước lên đáy hồ. Biết trong lượng riêng của nước là 10 000 N/m ³ 2. Áp suất của nước biển tác dụng vào 1 người thợ lặn là 300 000 Pa. Hãy tính độ sâu của người thợ lặn so với mặt nước biển. Biết trọng lượng riêng trung bình của nước biển là 10 300 N/m ³
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