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Physics, 05.08.2021 14:00 vdavihbk

1 lò xo nếu chịu tác dụng 1 lức 1N thì dãn ra1cm . Teo vật nặng 500g vào 1 lò xo rồi treo lên giá và cho nó dao động điều hòa theo phương thẳng đứng . chu kì dao động của con lắc là

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1 lò xo nếu chịu tác dụng 1 lức 1N thì dãn ra1cm . Teo vật nặng 500g vào 1 lò xo rồi treo lên giá và...
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