What is the acceleration in the y direction at time zero?

那y方向上,0时刻的加速度是多少？

youdao

Let's imagine that we have a point that's moving on the line, and at time zero, it's here at Q0.

我们可以想像由一个在直线上移动的点，在时刻0的时候，它在Q0处。

youdao

In the first case, we get the local default rate and the limit of credit spreads of zero-coupon bonds at time zero.

在第一种情形下，我们得到了局部违约率以及相应的零息债券在零时刻的信用利差的极限。

youdao

So, you remember from last time radial nodes are values of r at which the wave function and wave function squared are zero, so the difference is now we're just talking about the angular part of the wave function.

你们记得上次说径向节点在,波函数和波函数的平方,等于零的ｒ的处，现在的区别是我们讨论的是,角向波函数。

麻省理工公开课 - 化学原理课程节选

And at the same time,we also need to cultivate the positive, to think more of the zero to the positive side of the equation as well.

同时，我们还需要培养积极性，探究如何让我们从零点升到正直,该如何做。

哈佛公开课 - 幸福课课程节选

Then it lands on your foot, because assuming the cannon is at zero height, the cannonball certainly comes out towards the enemy, but has no time of flight.

然后它就会落在你的脚边,因为假设大炮的高度为 0,炮弹笔直地出膛打向敌人,却没有时间飞行

耶鲁公开课 - 基础物理课程节选

The soft drinks firm said they "did not feel it was appropriate" to use him at this time on their Coke Zero packs.

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If price inflation starts to fall towards zero at a time when interest rates are already low, drastic action might be needed to head off deflation.

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For instance, the tool can organize a lecture into chapters, index accompanying images, videos, and whiteboard demonstrations, and highlight the most important points for scholars to zero in on at exam time.

FORBES: Digital Teaching Promises to Improve Grades