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Physics, 23.07.2021 06:40 lilybrok04
một vật dao động điều hòa với biên độ A, gọi t1 là thời gian ngắn nhất vật đi từ vi trí cân bằng đến điểm có li độ x0 và t2 là thời gian ngắn nhất vật đi từ vị trí x0 đến biên dương. Biết rằng t2=2t1, biên độ dao động của vật là
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một vật dao động điều hòa với biên độ A, gọi t1 là thời gian ngắn nhất vật đi từ vi trí cân bằng đến...
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