And the temperature scale that turns out to be well-defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.
比如理想气体温标,它有精确的定义,并能引出绝对零度的概念,今天我们就先来谈谈它。
So you sort of have a zero-base budgeting model of, "If we were a start-up, what would we do? How would we organize to deliver value to the customers?"
所以得有一个零基础预算模式,如果我们从头开始,我们该做什么,我们如何组织以带给客户价值“
OK. And I'm going to look to see, is a particular element inside of that list, and again, I'll remind you, that's just giving me the integers from zero up to 9999 something or other.
一个又大又长的列表吧,好的,我打算查找列表中的一个特定元素,我会告诉你,我用的是0到大概是,9999左右的整数。
This piston is being brought out, so we expect 0 the work to be negative, negative. And we start o V2 ut with zero volume. We end up with a volume p2 of V2, and the external pressure is constant to p2.
所以我们可以想象功是负的,开始的时候体积是,最终的容积是,外界的压力恒为。
I want to point out that the zero energy is defined as when you have a naked proton -- where the electron has popped out -- that's what we've defined as zero energy up to this point when we're talking about single atoms.
我想指出,这里零点能的定义,是当我们只有一个裸露的质子,而没有电子时-,到目前为止对零点能一直采用这样的定义,当我们在讨论单个原子时。
If your cell phone goes off during an exam, I come up there. I grab your paper, I tear it in half, and I give you a zero.
如果你的手机在考试时响起的话,我会上前,将你的卷子拿过来,撕成两半,给你零分。
> David: Yeah, it's going to count from zero 100 up to one hundred percent.
>,大卫:是的,它将从0开始,计数到。
I assume that you know nothing, starting from ground zero here and build it up.
我假设你们什么都不知道,零起点,从头开始
We didn't even have income tax until 1913 when the Supreme Court allowed it, so it was zero, then it went up to 90%-- or actually it was 94% at the peak--and it came down to 15%.
直到1913年最高法院允许征收的时候,我们才开始征收所得税,开始税率是零,而后飙升到90%,然后它最高达到94%再降到15%
In fact, my program crashes because I end up trying to divide by zero, a really bad thing. Hint: if you implement Newton's method, do not make your first guess zero.
我下一步都没法开始,实际上,我的程序会崩溃,因为我试着去除0了,真糟糕,提示你:如果你想用牛顿的方法,第一个猜想数别设为0。
So, hopefully that kind of clears up that question. And, of course, when the velocity actually is zero, this equation that the de Broglie has put forth is valid for anything that has momentum, so if something does not have any velocity at all, it actually does not have momentum, so you can't apply that equation anyway.
能回答你的问题,当然,如果速度真的是零的话,德布罗意提出的这个方程,只对有动量的物体成立,所以如果一个东西没有速度,它没有动量,也就不能应用这个方程。
Somebody's up there going and it's actually the bass so we'll be wanting to zero in on the bass in a big way in music because that's oftentimes giving us much more information than the melody.
有些人在那唱,事实上那是低音,所以我们在音乐中,主要将注意力集中到低音上,因为大多数情况下,相比旋律而言,低音给我们的信息更多
Well recall from week zero when we took a very real world phonebook and then just last week we had our volunteer come up with the array of pieces of paper on the board and when I challenged myself and when I challenged our volunteer to find me the number 50 both he and I were able 50 to leverage one assumption.
大家回忆一下,当我们拿着一个现实世界的电话簿,就在上周我们的志愿者,在黑板上提出了纸片的阵列,我挑战自己,也挑战志愿者,要找出同一个,数字。
i So I have up here at the top of my program a variable called i 0 of type int, and I have to initialize it up here to zero.
所以在程序的顶端我有一个int类型的变量,我需要把它初始化为。
So again, if we think of a graph of the wave function, we had the wave function is at its highest amplitude when it's lined up with the nucleus, and then as we got further away from the nucleus, the amplitude of the wave function ends up tapering off until it never hits zero exactly, but it goes down very low.
同样,如果我们想象一幅波函数的图,波函数在原子核的位置上,有着最高的振幅,随着与原子核距离变远,波函数振幅逐渐变小直到,它永远不会到零,但它会变得很小。
Then we go negative and we go through zero again, which correlates to the second area of zero, that shows up also in our probability density plot, and then we're positive again 0 and approach zero as we go to infinity for r.
并且再次经过,这和,第二块等于0的区域相关联,这也在,我们的概率密度图里反映出来了,然后它又成了正的,并且当r趋于无穷时它趋于。
I print F, I backslash N, just to pretty up the screen, ArgC I then iterate from, I equal zero up to Arg C; so Arg C is the convention.
我键入printf,反斜杠n,来使屏幕变得美观点,然后i开始迭代,从i等于0增加到;,所以ArgC是一个约定。
应用推荐