Conversely, if I knew the velocity of this object, I also know what time it is, provided I knew the initial velocity.
反过来,如果我知道了这个物体的速度,我也同样可以知道时间,只要初速度是已知的
I think our add date this semester was beginning of October,
我想我们这个学期的加课日期是十月初,
If it was non-reversible, I would be allowed to put an initial point and a final point, but I wouldn't be allowed to put a path between them like this, connecting them together.
如果是不可逆过程,我可以画出过程的初态点,和末态点,但是我不能再像这样,画出连接这两个点的,路径曲线来。
What is it you have to know about this object that was thrown, I claim, is the initial location of the object and the initial velocity.
关于这个物体,我们需要了解什么,我要强调的,就是这个物体的初位置和初速度
I had an opportunity in the late 80s and early 90s, working with a small foundation in New York, to begin cultural activities in Vietnam before normalization of relations between the US and Vietnam.
我在八十年代末九十年代初曾经有幸,在纽约的一个小型基金会工作,和越南开展一些文化活动,那时美国和越南还未实现外交关系正常化。
So I realize that the constant, c, is the initial location of the object, and it's very common to denote that by x0.
所以我发现常数c,就是物体的初位移,我们习惯用x0表示
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