We apply the kinetic analysis to investigate the role of the intersystem crossing.
我们应用动力学分析来研究系统间交叉的作用。
The balance of these federations is kinetic.
这些联盟的平衡是动态的。
Nature can deal with kinetic energy one way or another, but it cannot finagle momentum.
自然可以应对动能，以这样那样的方式，但它却无法处理动量。
之后它就有了动能。
Movement produces kinetic energy, which can be converted into power.
移动产生热动能，这些可以转化成电能。
Friction can remove kinetic energy.
摩擦力可以转移动能。
If I let it fall, then that will be converted to kinetic energy.
如果我让它落下，那么势能会转化为，动能。
在这个动力学方程中。
动能将会增加。
That means the sum of potential energy and kinetic energy.
总功指的是势能,和动能的总和。
Friction must take kinetic energy out.
摩擦力一定抵消动能。
We lose kinetic energy when there is a completely inelastic collision.
我们失去了动能，这是完全非弹性碰撞。
It must have momentum, and yet it has no kinetic energy.
它一定有动量，但它却没有动能。
动能是守恒的。
This one now has kinetic energy and this one has kinetic energy.
现在它具有了动能，这个也有了动能。
Now I want to know how much kinetic energy of rotation these objects have.
现在我想知道这些的,旋转动能是多少。
Now, the kinetic energy and the momentum depend on your reference frame.
那么动能和动量，取决于你的参考系。
Kinetic energy before; kinetic energy afterwards.
之前的动能，之后的动能。
What do you think the situation is with the kinetic energy after the collision?
你认为是什么情况，碰撞后的动能怎样？
So there was a certain amount of kinetic energy.
因此，这里有一定量的动能。
The first thing I do, I increase the kinetic energy.
要做的第一件事，实增加动能。
I can destroy the kinetic energy completely if I want that.
我可以耗尽动能，如果我想的话。
That was the potential energy of the spring that was converted into kinetic energy.
这是弹簧储存的能量，它转化为动能。
What now is the kinetic energy afterwards?
碰撞后动能是多少？
There was no kinetic energy before...
碰撞前没有动能。
So, that was frequency with kinetic energy.
这是频率和动能。
It has a certain amount of kinetic energy.
它有一定量的动能。
You lose kinetic energy and that goes into heat.
失去动能，转化为热量。
All the kinetic energy is in the tennis ball; nothing is in the wall.
也就是网球的动能，墙壁没有动能。
I can arrange a collision so that all kinetic energy has been removed.
我能设计一次碰撞，使动能完全转化。
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