01-11-2021
Physics

contestada

một dây đàn có chiều dài 100 pha được chứ có thể nói hay đầu âm do dây đàn phát ra có bước sóng dài nhất bằng bao nhiêu để trên dây đàn có bước sóng dừng với 2 đầu là 2 nút

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Ameythystical Ameythystical

01-11-2021

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