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Physics, 20.09.2021 06:20 allhailkingmilkdud
Tại 3 đỉnh của 1 tam giác đều cạnh a có đặt 3 chất điểm , khối lượng lần lượt m1 , m2 , m3 . xác định khối tâm của hệ ba chất điểm đó áp dụng trường hợp m2=m3=m , m1=2m
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Tại 3 đỉnh của 1 tam giác đều cạnh a có đặt 3 chất điểm , khối lượng lần lượt m1 , m2 , m3 . xác địn...
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