And then we have c, the speed of light, 2.998 times 10 to the 8 meters per second.

然后我们知道光速等于，2，998乘以10的8次方米每秒。

麻省理工公开课 - 化学原理课程节选

We don't usually do our chemistry calculations in miles per hour, so let's switch that to 42 meters per second, so it's -- sorry, it's 94 miles per hour.

在化学计算中我们很少,用英里每小时，所以我们把它换算为42米每秒，对不起，它是94英里每小时。

麻省理工公开课 - 化学原理课程节选

You get 2.18 times 10 to the plus 6 meters per second, 1% which is about 1% of the value of the speed of light.

。18*10^6米每秒，得到的速度大概是光速的。

麻省理工公开课 - 固态化学导论课程节选

So, the way to measure force is in kilogram meters per second squared.

所以,力的单位是千克米每秒平方

耶鲁公开课 - 基础物理课程节选

So, if we kind of think about the numbers we would need, we would actually need a velocity that approached something that's about 10 to the negative 30 meters per second.

所以如果我们稍微想想，我们需要的数值是多少，我们需要一个,大约为10的负30次方米每秒的速度。

麻省理工公开课 - 化学原理课程节选

If the units come out in meters per second, you will quickly discover that the problems in 3.091 are just not that complicated.

如果你的单位是米每秒，你会很快发现,在3。091中的题目并不复杂。

麻省理工公开课 - 固态化学导论课程节选

So, this really just means for frequency, it's a frequency label.

你要说米每秒，所以它仅仅是，用来表示频率的，是个频率的标志。

麻省理工公开课 - 化学原理课程节选

If the units are supposed to come out in meters per second and you get seconds per meter, what do you figure the chances of that problem being right are?

因为如果单位本应该是米每秒,但你写的是秒每米，你认为这个题目,还有正确的机会吗？

麻省理工公开课 - 固态化学导论课程节选

I agree, but I want the speed in meters per second.

我同意,但我希望速度以米每秒为单位

耶鲁公开课 - 基础物理课程节选

We divide that by the mass, so 0.12 kilograms, that's the mass of a regulation baseball for the major leagues, and the velocity of the baseball is 42 meters per second. So, we can cross out our units doing our unit analysis.

我们用质量来除它，质量为0，12千克，这是大多数联赛规定的棒球质量,棒球的速度为42米每秒,所以，我们可以消去单位,来做单位分析。

麻省理工公开课 - 化学原理课程节选

Acceleration is measured in meters per second squared.

加速度的单位是米每秒平方

耶鲁公开课 - 基础物理课程节选

If your plan is to accelerate a 3 kg mass with an acceleration of 2 meters per second, you better have a rope that can furnish that force and it can take the tension of 6 Newtons.

如果你想用 2 米每秒平方的加速度,去拉一个 3 千克的物体,那么你就需要一根能提供拉力的绳子,并且它能够承受 6 牛的张力

耶鲁公开课 - 基础物理课程节选

You see an object in motion, you find a and you give a a certain numerical value, 10 meters per second squared.

你看到一个物体在运动,你会发现它的 a,然后给 a 赋值,10 米每秒平方

耶鲁公开课 - 基础物理课程节选

So, we can just plug it in. Speed is equal to the distance traveled, which is lambda over the time elapsed, which is 1 over nu. so, we can re-write that as speed is equal to lambda nu times nu, and it turns out typically this is reported in meters per second or nanometers per second.

经过的距离和所花的时间,我们把它们带进来,速度等于经过的距离,也即是lambda除以,所花的时间,通常它的单位,是米每秒或者纳米每秒。

麻省理工公开课 - 化学原理课程节选