• You see it on the general exams for physics, and it's simply a matter of conservation of mechanical energy.

    一般的,物理考试见到只是一个,机械能问题

    open.163.com

  • The second is more like a kite, transmitting mechanical energy to the ground, where generators turn it into electricity.

    第二个一个风筝,把机械能传递地面然后发电机转化成电能

    article.yeeyan.org

  • I used first the conservation - of mechanical energy-- there was no friction-- and then I showed you that it's completely consistent with the work-energy theorem, so what would you do now?

    首先机械能,守恒定律-,这里没有摩擦力-,我会你们展示,功能定理完全一致,现在怎么呢?

    open.163.com

  • And therefore almost every mountaineer has with him or her a device which converts mechanical energy into electricity.

    因此几乎所有登山者,都会携带一种,能把机械能转化装置

    open.163.com

  • This conversion from a mechanical energy into a chemical energy can be nicely visualized when one fills a hair cell with a sensitive die that responds to the calcium ions that influx into the cell.

    如果在毛细胞中注入,离子敏感的物质,可以精确地模拟,机械能化学能的转化过程

    v.163.com

  • And so you could have used the work-energy theorem or you can use the conservation of mechanical energy.

    所以可以,功能定理,或者机械能,守恒定律

    open.163.com

  • James Joules The physicist James Joules, after we we call after him the unit of work was the first to demonstrate that heat energy and mechanical energy are really equivalent.

    物理学家我们命名单位,一个演示出,热能机械能相等人。

    open.163.com

  • There is mechanical energy, mgh comes out in the scoops, and what does he notice?

    机械能来自勺子看到什么?

    open.163.com

  • When you don't have to worry about criteria like that ordinary, mechanical energy rules supreme, and that's dictating where equilibrium lies.

    如果担心这样要求,通常机械能就占据主要地位,并且决定平衡位于何处

    open.163.com

  • It has a certain speed and since spring forces are conservative forces, I can now apply the conservation of mechanical energy.

    一个速率,既然弹力,守恒的,现在我们可以运用,机械能守恒定理

    open.163.com

  • Gravity is the only force that to use the conservation of mechanical energy because gravity is a conservative force.

    重力唯一作用,可以,机械能守恒定理,因为重力恒定

    open.163.com

  • This is visualizing the process of the conversion of mechanical energy into chemical and electrical energy very nicely.

    模拟恰到好处地演示了,机械能化学能电能转换过程

    v.163.com

  • Kinetic energy can be converted back to potential energy, can be converted back, - but the sum of them-- which we call "mechanical energy"--is conserved.

    动能可以转化,成为势能,也可以转化为动能但是总和-,我们叫做,机械能恒定的。

    open.163.com

  • So they convert mechanical energy of rotation to magnetic energy, 1 which is not part of 801 so I will not go into how they do that.

    它们旋转机械能,转化磁能不是801部分1,所以不会怎么

    open.163.com

  • A 23-foot-long steel rotor shaft and two roller bearings transfer the mechanical energy to the generator.

    钢质转子23英尺,固定在两只滚珠轴承上,工作时由它机械能传递发电机

    article.yeeyan.org

  • However, the conservation of mechanical energy only holds for conservative forces.

    但是机械能守恒,仅仅适用保守

    open.163.com

  • So, let the total energy be just the mechanical energy which depends on my initial conditions wherever I start.

    因此能量就是,机械能,取决于从哪里,出发初始动能

    open.163.com

  • In the internal-combustion engine of a car, an electric spark explodes gasses in the cylinder; the heat energy moves the pistons, becoming mechanical energy to move the car.

    汽车内燃机引擎里,电火花引爆气缸燃料气体,然后热能推动活塞成为机械能推动汽车行驶

    www.xue.net

  • I believed in the conservation of mechanical energy and I overlooked the tension.

    相信,机械能守恒定理,忽略张力

    open.163.com

  • Then we have the conservation - of mechanical energy-- the sum of kinetic energy and potential energy.

    我们知道,机械能守恒定律-,动能,势能总和

    open.163.com

  • I was so convinced that the conservation of mechanical energy was going to work - that I almost killed myself-- - not quite-- with this huge, 15?

    坚信,机械能守恒定理,起作用,几乎自己-,近乎自己-,那个大概15公斤

    open.163.com

  • In contrast to an electrical KERS, the mechanical energy doesn’t change state and is therefore more efficient.

    相对电子KERS机械能并没有转换成其他种类的因此高效

    article.yeeyan.org

  • We were able to apply the conservation of mechanical energy because spring forces are conservative forces.

    我们可以运用,机械能守恒,因为弹力,

    open.163.com

  • Okay, I start off, point A is at a distance h h above this level, and so I apply now the conservation of mechanical energy.

    好的开始了,A距离这个平面,高度差,现在运用,机械能守恒定理

    open.163.com

  • This is part of 802, and I'm sure all of you are looking forward to 802, and that's when you will see how you can convert mechanical energy into magnetic energy.

    802部分肯定你们都,很向往802章,时候你们就能看到,怎样机械能,转化磁能

    open.163.com

  • Nuclear energy can be converted into heat, and that can be converted into mechanical energy and again into electricity.

    核能可以转化热量转化机械能,转成电力

    open.163.com

  • The big disadvantage of free-standing turbines is that they are less efficient in transforming the mechanical energy of water into electrical energy than turbines in dams are.

    独立式涡轮最大缺点他们机械能转化为电能效率低于大坝安装的涡轮

    article.yeeyan.org

  • Now, I am such a strong believer of the conservation of mechanical energy that I am willing to put my life on the line.

    现在相信,机械能守恒,愿意生命,放到条线上

    open.163.com

  • When people open or close a door, the door produces mechanical energy that could be turned into electric energy.

    人们关门门所产生机械能转化成为电能

    bbs.liba.com

  • When people open or close a door, the door produces mechanical energy that could be turned into electric energy.

    人们关门门所产生机械能转化成为电能

    bbs.liba.com

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