Một ấm nước bằng đồng có khối lượng 250g chứa 1,5 lít nước ở 20 độ C. Tính nhiệt lượng cần cung cấp để đun sôi ấm nước trên? ( nhiệt dung riêng của nước là 4200 J/KG.k, của đồng 380 J/KG.k)

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