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Physics, 25.07.2021 21:00 anonymous176

Một lò xo độ cứng k=130N/m. Trong cùng khoảng thời gian như nhau, nếu treo quả cầu khối lượng m1 thì nó thực hiện 10 dao động, thay bằng quả cầu khối lượng m2 thì số dao động tăng 50%. Khi treo cả m1 và m2 thì chu kỳ dao động là 2s.

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Một lò xo độ cứng k=130N/m. Trong cùng khoảng thời gian như nhau, nếu treo quả cầu khối lượng m1 thì...
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