Therefore, mathematically at a given time t, we can trade t for v and put it into this formula.
因此,从数学角度来说,在给定的时刻 t,我们可以用 v 来表示 t,并代入这个式子
and the same for favour, they spell f-a-v-o-r, we put u in it,
同样地,对于发烧这个单词,他们拼写成f-a-v-o-r,我们要加一个u在里面,
OK, so now we can take the result from this and put it onto a p v diagram.
好,现在我们有了结论,把它画进pv图。
If you solve for that, you find y-y0=v0^/, and if you put in the v_0 I gave you, which was what, 10?
如果你解这个式子,你会得到y-y0=v0^/,如果再把我给你的v0代入,那个数是多少 10
So instead of p, here I'm going to put nRT over V.
于是把p写成。
If you want to find the speed there, you put the equation v^=v0^-2g.
如果你想求出那一点的速度,可利用方程v^=v0^-2g
It just turns out that if you put the v^2 and you put the r, and r is 93 million miles, you will find the acceleration is small enough for us to ignore.
这样的话,如果你把 v^2 和 r 代进去,r 是 9300 万英里,你会发现加速度小得足以被忽略
b If we put it as minus b, that's just equal to a over V squared.
如果我们写成负,这里就等于a除以V的平方。
应用推荐