% It hits the vertical access at 5%.
它在竖轴上的截距为。
so you get the other team go out and what they do is field.
另外一队在外面,他们要做的就是截球。
B is the assumed cross-section of the nucleus.
假定B是核的横截面积。
So, the number of nuclei, 119 if we were to sit and count these as well, is 119. So, we'll multiply that by just pi, r squared, to get that cross-section, and divide all of that by 1 . 39 meters squared.
如果你们数的话,原子核的数是,我们用它乘以πr的平方,得到横截面积,除以1。39平方米。
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