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And so, you know from your Newtonian mechanics, as you were learning in 8.01, the dynamic force here mv^2/r is mv squared over r.
在8。01节对牛顿动力学系统的学习中，我们可以知道这里的运动受力,就是。
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I can't remember their names either, but their last names begin with "R" and "S" and "A".
我也记不住他们的名字，但他们的姓氏是由“R”，“S”和“A”开头的。
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And we plug in our values and end up with mv squared mv^2/r-Ze^2/ over r minus Ze squared over And I am going to call this equation two.
我们最后的结果,就是,我把这称为方程式二。
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We take this Cv and put in the exponent here R right. And we put this R up in the exponent here.
我们把这个Cv提出来,放在这里的指数上，好吧？然后把。
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Mathematically, it's done by taking the expression for R and differentiating everything in sight that can be differentiated as vector t.
从数学上看是这样的,写出 R 的表达式,并对所有可以进行矢量微分的部分,对时间 t 求微商
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So kind of that strange cursive r, and our n final is 2, R so 1 over 2 squared minus n initial, so 1 over 3 squared.
因为我们可以在这里用到它，这个有点奇怪的花体。
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Some languages like English has a-- have a distinction between 'l' and 'r.' Other languages do not.
某些语言,如英语,在"l"和"r"之间是有差别的,其他语言则没有
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If they quote the rate on the mortgage, call that r Traditionally you would be paying monthly.
如果给定贷款利率,记为r,通常你是每月还款
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There's also this backslash R. Anyone know what backslash R is?
这还有\r，谁知道\r代表什么？
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And now the force, in its most general term / is q1q2 over 4 pi epsilon zero, which is the conversion factor r squared.
库仑力的最基本形式,就是，其中r是一个变量。
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At infinity, there's no stored potential energy, and it drops off more and more negative as one over R.
在无限远处，没有储存的势能，并且它向负方向减少，当距离超过R时。
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At very, very low values of r, one over r to the 10th dominates.
在很小很小的r是，1/r的10次方占主导。
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See, at very, very high values of r, one over r dominates.
看，很大很大r，1/r占主导。
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Force goes as one over r squared.
力和1/r^2成正比。
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The magnitude is v square over r.
模长为 v^2 / r
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R/Cv OK, so that means that this is really instead of -1 R over Cv. it's really gamma minus one.
现在,变成了γ
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