Physics, 10.10.2021 14:00 browneyedbaby20

vàng, kim loại có khối lượng riêng bằng 19,32 g/cm³ ,là kim loại dẻo nhất có thể cán mỏng hay kéo dài thành sợi nhỏ hỏi: Nếu 1 mẫu vàng có khối lượng 27,63g được cán thành lá mỏng có bề dày 1000um thì diện tích của lá vàng đó là bao nhiêu

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vàng, kim loại có khối lượng riêng bằng 19,32 g/cm³ ,là kim loại dẻo nhất có thể cán mỏng hay kéo dà...