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

Using the same two initial arm lengths an Angle of 90 degrees between them produces a third side which is the square root of 2 times the arm length.

使用最初的相等的两个手臂长度和之间的夹角为90度，可以产生第三条边，而变成等于2的平方根乘以手臂的长度。

youdao

Using the same two initial arm lengths an Angle of 90 degrees between them produces a third side which is the square root of 2 times the arm length.

使用最初的相等的两个手臂长度和之间的夹角为90度，可以产生第三条边，而变成等于2的平方根乘以手臂的长度。

youdao