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ngochantvp
2 năm trước
Bài 13: Một cục nước đá có thể tích 360 cm³ nổi trên mặt nước. a. Tính thể tích của phần cục đá nhô ra khỏi mặt nước, biết khối lượng riêng của nước đá là 0,92 g/cm³ b. So sánh thể tích của cục nước đá và phần thể tích nước do cục nước đá tan ra hoàn toàn. Bài 14: Trong một bình đựng nước có một quả cầu nổi, một nửa chìm trong nước. Quả cầu có chìm sâu hơn không nếu đưa cái bình cùng quả cầu đó lên một hành tinh mà ở đó trọng lực gấp đôi so với trái đất.
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