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Physics, 17.06.2021 19:30 Porciabeauty6788
Trên 2 đỉnh b, c của tam giác abc, (ab=4cm, ac=3cm, bc=5cm) người ta đặt hai điện tích điểm qa=16.10^-8 và qc=-12.10^-8c. Vactẻ cường độ điện trường do hệ hai điẹn tích trên gây ra tại b có độ lớn bắng bao nhiêu
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Trên 2 đỉnh b, c của tam giác abc, (ab=4cm, ac=3cm, bc=5cm) người ta đặt hai điện tích điểm qa=16.10...
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