Gas phase single atom. So we don't have to deal with work function or any kind of energies associated with some condensed form of matter.
气相的单原子,所以我们不需要再,处理功函数的问题,以及和凝聚态相关的能量问题。
The amount of work you've put in to get here depends on the path. It's not a function of state.
这些量就能,决定系统的状态了。
What is Socrates trying to do here, and what is that metaphor, ? that central metaphor, ? what function does it serve within the work?
苏格拉底倒底想干吗,那个隐喻,那个核心隐喻是啥,它在本书中有啥功用?
So if we think about the work function for zinc, and the work function for zinc is 6.9 times 10 to the -19 joules, do we expect that when we shine our UV light on the zinc, we'll be able to eject electrons?
如果我们考虑锌的功函数,它是6,9乘以10的-19次方焦耳,我们是否可以预测当,用紫外灯照射锌时,我们可以射出电子呢?
The circulatory system which we'll talk about in a couple of weeks, the heart, the blood vessels, and the blood work together to form a totally internal function.
例如过几周我们要讲的循环系统,心脏,血管,血液,三者协同工作,形成一个完全在体内发挥作用的体系
Actually for that, I can just use, if I'm lucky, function F5, which didn't work, so let me try it again,here we go.
实际上这一次,我是想用用,如果我够幸运的话,用下F5,噢,怎么不灵,让我再试试,好了。
When we talked about the photoelectric effect, that was called the work function.
如果我们在研究光电效应,这被称为功函数。
So this is another kind of engineering, an engineering not to look more closely at how humans work but an engineering to improve their function when it's failing.
这便是另一种工程技术,它并不研究人体运作原理,而是强化某部位的功能,如果这个部位失效了的话
now we're not just talking about 1 photon, 1/2 let's say we shoot them all at the same time at our metal, each of them having some energy that's let's say 1/2 the work function. So, just to take a little bit of an informal survey, who thinks here that we will have an electron that is ejected in this case?
我们现在不仅仅讨论一个光子,它们所具有的能量是功函数的,我们在同一时刻把它们打到金属上,我们做一个不太正式的调查,谁认为这种情况下,一个电子会被打出?
We can also talk about it in terms of if we want to solve, if we, for example, we want to find out what that initial energy was, we can just rearrange our equation, or we can look at this here where the initial energy is equal to kinetic energy plus the work function.
初始能量是多少,也可以,写成另一种形式,我们可以把方程变形,或者我们看这里,初始能量等于,动能加功函数。
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