What is this orbital? Yup. And there's only 2pz one correct answer here, which is to 2 p z.

它的轨道是什么？，嗯，这里,只有一个答案，那就是。

麻省理工公开课 - 化学原理课程节选

Again, your common sense tells you, "Look, you are pulling something whose effective mass seems to be 5, the answer is 2."

你的常识会又一次告诉你,"你在拉一个相当于 5 千克的物体,所以加速度是 2 "

耶鲁公开课 - 基础物理课程节选

All right. I tried it on 2, I surely didn't expect a precise and exact answer to that but I got something, and if you square this, you'll find the answer kept pretty darn close to 2.

好，我试试求2的平方根,我当然不希望得到一个完全准确的答案了,但是我得到了一个近似值，试试将这个数平方一下,你会发现结果和2相当接近。

麻省理工公开课 - 计算机科学及编程导论课程节选

T I need to answer this question, T of 2.

现在我需要得到。

哈佛公开课 - 计算机科学课程节选

So the correct answer for titanium plus two Ar3d2 is going to be argon 3 d 2, whereas if we did not rearrange our order here 4s2 we might have been tempted to write as 4 s 2 so keep that in mind when you're doing the positive ions of corresponding atoms.

所以正2价钛离子,的正确答案是，然而如果我们不重新安排顺序,我们可能会写出2,所以请记住,它当你们在解关于原子,的正离子的时候。

麻省理工公开课 - 化学原理课程节选

% Some people, the next most popular answer with 5%, which is a nice low number, wanted to put two in the 2 p x before they moved on.

下一个更多的选择占了,是一个比较低的数字，想要将两个电子在移动之前放入2px轨道,记住在我们双倍填充之前。

麻省理工公开课 - 化学原理课程节选

Okay, so the final answer is that x=x0+v0t+at^/2.

最终的结果是,x=x0+v0t+at^/2

耶鲁公开课 - 基础物理课程节选