Physics, 27.09.2021 16:40 nickespinosa11
Một vật dao động điều hoà theo phương trình x = 12cos(4πt) (cm), biên độ dao động của vật là
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Một vật dao động điều hoà theo phương trình x = 12cos(4πt) (cm), biên độ dao động của vật là...
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