youdao

So if now I hang on it a mass of one kilogram, I can calculate the period of one oscillation, and one over the period F is the frequency F, and I believe that is something like 38 hertz.

如果在上面,悬挂1公斤物质，我能够计算出,振荡的周期，1除以周期,等于频率，我相信,等于大概38赫兹。

youdao

Such as kilogram of mass unit , Kelvin of thermodynamic temperature , Joule of energy unit , Ampere of electric current intensity and Newton of force unit and so on?

比如，质量单位千克，热力学温度开尔文，能量单位焦耳，电流强度单位安培，力单位牛顿等。

youdao

We can be precise about how much bigger by saying, "If the acceleration of a body to a given force is ten times that of a one kilogram mass, then this mass is one-tenth of one kilogram."

我们能精确地知道质量能大多少,只需要说,"如果物体在给定力作用下的加速度,是一个 1 千克物体的加速度的 10 倍,那这个物体的质量就是 1 千克的十分之一"

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