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sonntfs3473
2 năm trước
Cho q1 = 3 micro Cu-lông và q2 = -5 micro Cu-lông a, Tính lực tương tác điện giữa 2 điện tích q1, q2 b, Tính cường độ điện trường do q1, q2 gây ra tại M c, Tìm N tại đó điện trường do q1, q2 gây ra bằng 0 với giả thiết q1, q2 cố định Mn giúp em câu c với ạ. Em cảm ơn
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