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temaclaodai2164
2 năm trước
Bài 7. Nếu sữa trong một hộp sữa có khối lượng tịnh 387 g và thể tích 0,314 lít thì trọng lượng riêng của sữa là bao nhiêu ? Bài 8. Khối lượng riêng của dầu ăn vào khoảng 800kg/m3. Do đó, 2 lít dầu ăn sẽ có trọng lượng khoảng bao nhiêu kg ? Bài 9. Khối lượng riêng của sắt là 7800kg/m3. Vậy 1kg sắt sẽ có thể tích vào khoảng bao nhiêu m3? giúp mình với nhé
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