浮沉子為何會貼附於瓶子的內壁
回答 (1)
2011-04-23 7:17 am
✔ 最佳答案
With the infomation that you have given in your question, and assume that the water surface is perfectly still, it probably is due to surface tension (表面張力).
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https://hk.answers.yahoo.com/question/index?qid=20110422000051KK00325