The effects of flow speed increase the mean square velocity and radiated power, the effect on radiated power is more obvious than on velocity.

随着流速的增加，结构的法向均方速度和辐射声功率均增大，但流速对结构辐射声功率的影响远大于对结构速度均方值的影响；

youdao

I mentioned earlier, notice that the orbital period and the escape velocity vary by a square root of two if you are at a particular position.

我之前说过，注意，轨道时间和逃逸速度，因2的平方根不同，如果你在某特定位置。

youdao

If you want to escape from this, you will need a speed which is the square root of two times larger than that orbital velocity.

如果想要逃离这里，你将需要一个速度，是轨道速度2倍大的，平方根。

youdao

I think you can tell by analogy with what I did in one dimension that the position of that object at any time t is going to be the initial position plus velocity times t plus one half a t square.

你们可以类比一下我在一维情况下的结论,这个物体在任意时刻 t 的位移,等于初始位移,加上 v ? t + 1/2 ? a ? t^2

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Here's the math: Forces are (roughly) proportional to the density of the fluid and to the square of the velocity.

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