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Physics, 22.07.2021 06:30 Adialis

Trong thí nghiệm giao thoa sóng nước hai nguồn s1 s2 cách nhau 20 cm dao động cùng pha cùng tần số f = 1 cm

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Trong thí nghiệm giao thoa sóng nước hai nguồn s1 s2 cách nhau 20 cm dao động cùng pha cùng tần số f...
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