112物理實驗 空氣阻力

2014 0:36
Synopsis
實驗方法: 1.準備1本書和1張紙。 2.將書和紙張於同一高度落下做自由落體運動。 3.觀察其結果並紀錄。 實驗結果:因為紙張質量 ...
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