If I make it four times shorter-- l 2 the square root of four is two.

如果缩小4倍-,缩小4倍-，l，four，times，shorter--,4的平方根是。

youdao

The period, which is 2 pi times the square root of l over g, if you substitute in your length of 5.1 meters, you will find 4.57 seconds.

周期，等于2π,乘以l/g的平方根，如果把长度为5。1米,代入，会得到4。57秒。

youdao

If you are near Earth in orbit, you are eight kilometers per second, and eight times the square root of two 2 is exactly that 11.2.

如果你在轨道接近，地球，那是8千米每秒，8乘以2平方根，正好是11。

youdao

Now you have to know from elementary calculus that v times dv/dt is really d by dt of v square over 2.

根据初等微积分知识你们得知道,v乘以dv/dt其实就是d/2)/dt

耶鲁公开课 - 基础物理课程节选

As long as we understand that, we can do this cancellation and this says on the left-hand side the change in the quantity v square over 2 is a times the change in the quantity x.

只要我们明白这一点,我们就可以这样做简化,在等号左边,v^/2的变化量,为a乘以x的变化量

耶鲁公开课 - 基础物理课程节选

An estimated 12, 000 people attended the event, which took place in Times Square between 28 February and 2 March.

BBC: Street Spice salmonella outbreak: Online survey

Among its highlights are Tokyu Hands (Takashimaya Times Square, 5-24-2 Sendagaya), a department store that sells everything you could ever need, and plenty of stuff you had no idea even existed (electrically heated pilllows anyone?).

CNN: Tokyo: Where to shop