And that's because the desk is exerting an equal and opposite force on you.

我们真正理解牛顿在谈论什么我们真正理解牛顿在谈论什么。

By exerting a force downward, an equal and opposite force pushes upward, and the object accelerates.

通过施加一个向下的力，将会产生一个同等的并且反向的向上的推动力，这个推动力促使物体加速运动。

So there's an equal and opposite force on the rocket, the thing that is actually expelling the gas.

我们真正理解牛顿在谈论什么我们真正理解牛顿在谈论什么。

But direct evidence that it's exerting an equal and opposite force-- is that my hand will get compressed.

我们真正理解牛顿在谈论什么我们真正理解牛顿在谈论什么。

There'd have to be an equal and opposite force instantly transmitted backwards, on my foot.

在我的脚上，必须立即向后传递一个相等且相反的力。

There is an  equal but opposite force normal which acts to the left from the book on the wall.

有一个大小相等但方向相反的力作用于墙上书的左边。

There is an equal but opposite force applied which acts to the right from  the book on mr.p's hand.

有一股大小相等但方向相反的力作用于 p 先生手上书本的右侧。

But there's an equal and opposite force of the Moon acting on Earth.

但月球对地球有一个相等且相反的力。

And that is the equal and opposite force that the table is putting on your finger.

这就是桌子施加在您手指上的相等且相反的力。

But as it does that, there's an equal and opposite force that the molecules are exerting on the rocket.

但当它这样做时，分子会对火箭施加一个相等且相反的力。

That means there is  an equal but opposite force of gravity which acts upward from the book on the Earth.

这意味着存在一个大小相等但方向相反的引力，从书本向上作用于地球。

That means there is an equal but opposite force of static  friction which acts downward from the book on the wall.

这意味着存在一个大小相等但方向相反的静摩擦力，它从书本向下作用于墙壁。

The equal and opposite force is the force that the particles, those molecules of air are exerting on the jet and moving it forward.

相等且相反的力是粒子（空气分子）施加在射流上并使其向前移动的力。

The equal and opposite reaction force is that the molecule is going to be pushing on the jet engine with an equal but an opposite force.

相等且相反的反作用力是分子将以相等但相反的力推动喷气发动机。

We can apply an equal and opposite force to the charged particle and move it across the capacitor as slowly as we like, so that the kinetic energy of the particle is negligible.

我们可以对带电物体施加相等且相反的力 并且如此缓慢地移动它通过电容器，以至于我们忽略了粒子的动能。

Well, the equal and opposite force is the force that the wrench is going to exert on you, the astronaut, and then it will push you in that direction and accelerate you in that direction.

那么，相等且相反的力就是扳手将施加在你（宇航员）身上的力，然后它将把你推向那个方向并加速你朝那个方向。

That is the force that Earth is acting on me due to gravity, but it turns out that there's an equal and opposite force of 165 pounds that I am pulling on Earth with.

这就是地球因重力而作用在我身上的力，但事实证明，我用 165 磅的相等且相反的力拉着地球。