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Physics, 26.10.2021 05:40 germaniranda619

Trên trục Ox, cho hai chất điểm dao động điều hòa cùng phương có phương trình li độ lần lượt là x1= A1cos10t(cm); x2=A2cos(10t + j) cm. Biết rằng 400+ 225= 144 (cm2). a. Xác định biên độ dao động tổng hợp của hai dao động trênA. 1 cmB. 0,6 cmC. 0,8 cmD. 0,2 cm

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Trên trục Ox, cho hai chất điểm dao động điều hòa cùng phương có phương trình li độ lần lượt là x1=...
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