Well, we can continue. On a light-up valentine it means "don't stop, go."
勇往直前吧“
So, most people could recognize that light wave a has the shorter wavelength. We can see that just by looking at the graph itself -- we can see certainly, this is shorter from maxima to maxima.
0秒钟,好的,不错大部分,同学都可以判断出来这个光波的,波长更短,我们仅通过,看图就能看出来-可以。
It makes me feel even worse that everybody else is stuck dying-- or perhaps we should say dying too soon in light of our discussion about immortality.
所有人都为死而苦恼让我感到更糟糕-,或者我们应该说,按照我们对永生的讨论,是死得太早。
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?
So that's the important take-away message from this slide. If we think about these different types of lights, microwave light, if it's absorbed by a molecule, is a sufficient amount of frequency and energy to get those molecules to rotate. That, of course, generates heat, so that's how your microwaves work.
重要的信息,如果我们看看,这些不同种类的光,微波,如果被分子吸收,它的频率和能量可以,使分子转动,这当然的,会产生热量,这就是你们微波炉的工作原理。
So, for example, here we're showing rubidium and potassium and sodium plotted where we're plotting the frequency -- that's the frequency of that light that's coming into the metal versus the kinetic energy of the electron that's ejected from the surface of the metal.
让大家看来都是可以理解的事情,就是把不同金属的观测结果,画到一张图里面来,例如这里,我们展示的是钠,钾,铷的频率-这是照射金属的光的频率,和金属表面出射电子动能的关系。
What we either have to do is deny the claims I'm made about the nature of death, or else go on to ask-- supposing they are true-- ? how should we live in light of them?
我们要做的是,否认我对死亡的本质的说法,或者继续问-,假设它们是真的-,鉴于此,我们应该怎样生活?
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