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hhuuhung091
2 năm trước
Hai vật nhỏ tích điện đặt cách nhau 3 cm trong chân không,hút nhau bằng một lực F = 6.10-5N. Điện tích tổng cộng của hai vật là Q = 10-9C. Tính điện tích của mỗi vật.
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