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Trân Dĩnn
2 năm trước

mọi người giúp em câu hỏi này vs ạ :viết công thức biểu diễn sự phụ thuộc của 3 yếu tố tiết diện,chiều dài,vật liệu

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quangdoan
2 năm trước

Đáp án:

 

Giải thích các bước giải:

 Điện trở:

$R=\frac{\rho l}{S}$

$\rho$ là điện trở suất của vật liệu

$l$ là chiều dài

$S$ là thiết diện

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Viết một đoạn văn hoàn chỉnh về lý do học tiếng Anh bằng cách đưa ra các manh mối ( ko chép mạng nhá)

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việt nam dành độc lập vào năm nào

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