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Physics, 29.11.2021 06:20 budjasdatazaki467

Một lò xo có chiều dài tự nhiên 20cm và có độ cứng 40N/m. Giữ cổ định một đầu và tác dụng vào đầu kia một lực 2N để nên lo xo. Chiều dài của lò xo khi bị nén là bao nhiêu?

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Một lò xo có chiều dài tự nhiên 20cm và có độ cứng 40N/m. Giữ cổ định một đầu và tác dụng vào đầu ki...
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