n*****j
发帖数: 22 | 1 小弟有个简单力学问题，请各位大侠指教并提供相关资料！多谢（见附图） | d******t
发帖数: 648 | | n*****j
发帖数: 22 | 3 多谢回复！
可能我的问题描述不是很清楚，以至于大家误解，请谅解．
如图中所示，比如最弱的点在大于50Ｎ时就会断裂，第一种情况很清楚断裂的力量是50
Ｎ，但是第二种我也认为是50Ｎ，但是我的老板非说肯定不会再是50Ｎ了．所以迷茫啊
，想进步确认以及寻找一些依据来说服他老人家． | s*******e
发帖数: 1298 | | j****x
发帖数: 943 | 5 I think you are right, if this process is carried out in a perfectly slow
and steady way, no stuffs like acceleration and vibration occurs, which is
very difficult to maintain in the real world.
On a second thought, is this for stretching the DNA? I actually watched an
interview of Steven Chu the other day. In the talk he mentioned that for DNA
stretching using optical tweezers. Since most of the case due to the
existence of water and many other effects for DNA molecules, DNA is not in
an equili |
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