It's a physics toy that demonstrates angular momentum, potential energy, and kinetic energy.

是个物理学家的玩具可以演示角动量还有动能和势能。

For this, we need the kinetic and potential energy for each, and we write them as a function of y and eta.

为此， 我们需要每个的动能和势能，并将它们写为 y 和 eta 的函数。

We should foster new drivers for global development, forge a global development partnership, and see that everyone in every country benefits more from the fruits of development in a more equitable way.

培育全球发展新动能，构建全球发展伙伴关系，让发展成果更多更公平惠及每一个国家、每一个人。

So a lot of kinetic energy gets distributed over a small space and the air doesn't slow it down much at all.

所以极大的动能被一个狭小的空间且空气阻力减速程度不高。

The kinetic sculptures that Anthony Howe creates are tall as much as 25 feet high and they're stopping people in their tracks around the world

安东尼·豪，创造的动能雕塑高达25英尺，它们世界各地阻人们他们的轨道上.

It took them twenty minutes to fold the plane just right, making sure to craft it with as much weight as possible, helping them create the greatest amount of momentum after the toss.

他们花了20钟才把飞机叠好，确保纸飞机的重量最大，这可以保证纸飞机被获得最大的动能。

The more kinetic energy there is, the heavier these daughter particles can be.

动能越大，越能产生更大质量的粒子。

These periods are times when wind turbines are powered by hydrogen gas.

氢气曾用来为风力涡轮机提供动能。

This kinetic energy depends on the mass of the object and how fast it's moving.

这个动能取决于物体的质量和它移动的速度。

We have like kinetic energy, we have potential energy, friction.

我们有动能、势能和摩擦力。

And that's one of the reasons people are so impressed with these MacBook Pros is they have the power and they have the increased battery life.

性能强大的芯片也是人们对MacBook Pro系列印象深刻的一个原因，该系列动能强大，并且电池续航时间更长。

This extra energy comes from the planet's own energy of motion around the sun.

额外的能量来自于行星绕太阳旋转时自身的动能。

Particle interactions allow for this kinetic energy to be radiated out into space at an astonishing matter-to-energy efficiency: 6% for non-rotating black holes, and up to 32% for rotating ones.

颗粒之间的相互作用使该动能得以辐射到宇宙空间。其间的物质到能量的转化效率非常惊人：非旋转黑洞是 6%，而旋转黑洞则可以高达 32%。

When that energy is needed the water is released down the mountain where it's converted into kinetic energy that spins a turbine and generates electricity for the grid.

当需要这些能量时，水被释放到山下，那里它被转化为动能，旋转涡轮机，为电网发电。

The action we're talking about here is a result of interacting physical forces, a moving ball's tendency to stay in motion, or its force of momentum vs. the constant force of gravity bringing it back down Earth.

这里我们所说的动作 是物理力量交互作用的结果，一个是驱动球体，持续跳起的动能 对抗将球带回地面 的地心引力。

As a hurricane's winds blow over the waves, the rough surface of the ocean exerts a drag on the storm, sucking energy out of it similar to how friction slows down a sliding object by removing its kinetic energy.

当飓风的风吹过海浪时，粗糙的海洋表面会对风暴产生阻力，从风暴中吸取能量，就像摩擦力通过消除动能来减慢滑动物体的速度一样。

Its jumbo jet size floating platform called the O2 has two giant rotors that sit 60 feet below the surface of the water and can harness the energy of the ocean's tides. It's kinetic energy.

这个公司的巨型喷气式飞机大小的浮动式平台名为O2，它有两个巨大的螺旋桨，位于水面下60英尺，可以利用海洋潮汐的能量。这是动能。

This process works like a tiny furnace and spits out waste products like CO2, water, and a little bit of kinetic energy that you experience as body heat.

这个过程就像一个微型熔炉一样，会吐废品，诸如二氧化碳，水和一些被当做身体热能的动能。

Maybe not an ideal situation for commercial navigation through the river but a perfect scenario to capture the water's kinetic energy to spin a turbine to generate electricity.

对于商业航运来说，这种情况也许并不理想，但对于利用水的动能来旋转涡轮机发电来说，却是再好不过了。

You can either hit it with a kinetic impactor, like NASA did with the DART mission back in 2022 with a different asteroid, and change its orbit.

你可以使用动能撞击器，就像 NASA 2022 年 DART 任务中对另一颗小行星所做的那样，以改变其轨道。