They are the radius of the orbit, the energy of the system and the velocity of the electron, and I am just going to present you the solutions.

它们是轨道的半径，系统的能量以及电子的速度，我接下来给你们展示解法。

youdao

It can see the distance, bearing, heading, velocity, and energy level of other robots.

它可以知道其它机器人的距离、方位、方向、速度和能量等级。

youdao

We need to know the velocity of the neutron which we can talk about with energy and we need to know the time, when did this take place?

我们需要知道中子的速率，我们能够用能量来谈论它，我们需要知道时间，它什么时候会发生？

youdao

The radius of the orbit, the energy of the system and the velocity of the electron, I am just going to present you the solutions.

是轨道的半径，系统的能量,以及电子的速度，我接下来会给你们讲解其方程的解法。

麻省理工公开课 - 固态化学导论课程节选

The second piece of information we need to know is what actually the kinetic energy is of the ejected electron, and that's something we can just measure by measuring its velocity.

其次，我们需要知道的信息是,出射电子的动能，这可以通过,测量它们的速度得到。

麻省理工公开课 - 化学原理课程节选

And I have purposely made the arrow shorter to indicate that it has been slowed because we are going to argue its mass didn't change, so the only way to change its energy is to change its velocity.

我已经故意将这个箭头弄短,用来象征它变慢了,因为我们将证明它的质量没有变，只有它的能量改变了,也就是它的速度变了。

麻省理工公开课 - 固态化学导论课程节选

Because it has less to do with standing still and more to do with how you use velocity, energy, and mass to keep moving forward.

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