Momentum is conserved, because there was no net external force, so now kinetic energy is also conserved.
动量是守恒的，因为它不受外力，因此动能也是守恒的。
The energy possessed by an object by virtue of its motion is called kinetic energy, or energy of motion.
物体由于运动而具有的能量叫动能。
Professor Shankar then reviews basic terminology in relation to work, kinetic energy and potential energy.
教授山卡接着审查基本术语有关工作，动能和势能。
Interstellar gas clouds frequently collide and convert their kinetic energy into shock waves and radiation.
星际气体云经常在碰撞间将动能传给冲击波和辐射。
The generation of kinetic energy by divergent wind is the primary fact or to the change of cyclone intensity.
发现低层的散度风制造是气旋强度变化的主要原因。
What potential energy and kinetic energy really mean will be the content to be discussed in the next article.
势能与动能的含义究竟是什么将在下文中予以讨论。
Characteristics of Kinetic Energy and Momentum of Horizontal Rotary Cavity Flow in Internal Dissipating Tunnel
水平旋转内消能泄水道空腔环流的能动量特性
Determining Economic Pipe Diameter of Irrigation and Drainage Pumping Station With Kinetic Energy Economy Method
用动能经济方法确定排灌泵站的经济管径
Energy considerations alone do not suffice to tell us how much kinetic energy is gained by each body separately.
仅靠能量关系还不足以说明每一个物体分别增加多少功能。
The Principle of Kinetic Energy of Particle And Condition of Mechanical Energy Converation in Noninertial System
非惯性系中质点的动能定理及机械能守恒条件
What you're doing is, when you stand up, potential energy to kinetic energy, potential energy to kinetic energy.
身体直立情况下，您所做的就是 把势能转变 为动能。
The effect of idealized water waves on the turbulence structure and kinetic energy budgets in the overlying airflow
理想水波对上覆气流中湍流结构和动能收支的影响
In order for energy to be conserved, the final total kinetic energy must be greater than the initial by this amount.
要符合能量守恒原理，末总动能必须比初动能大这么多。
On the contrary， trough exists over the Plateau， so the eddy kinetic energy transport channel moves to the south.
高原上为槽时，涡动动能的输送通道偏南。
The opposition, slowing or prevention of oscillation, or decreasing vibration amplitude, as kinetic energy dissipates.
指随着动能的损耗, 振动变慢或幅度降低。
If two marbles collide, they rebound with a total kinetic energy that is less than what they had before the collision.
两粒弹子相撞，它们弹回时的总动能比碰撞之前要小。
The velocity of a projectile can be accelerated to a few kilometers per second by the new concept kinetic energy weapons.
新概念动能武器可以把弹丸加速到每秒几公里的速度。
In this paper the kinetic energy formula of rigid body in rotation round a fixed point is derived in teaching on physics.
本人从教学角度推导了刚体绕定点转动的动能定理。
Analytical solution of motion equations and equation of specific kinetic energy for relative motion of two near Spacecrafts
相邻两航天器相对运动近似方程的解析解及比动能方程
The pressure in a perfect gas, being directly proportional to the kinetic energy of the molecules, has a lower bound of zero.
理想气体得压力与分子得动能成正比，它得下限为零。
The entrance of the memorial square is in sight, their information field of the disturbance kinetic energy increase to bigger.
纪念广场的入口在望，她们信息场的扰动动能增至更大。
You see there first the component of the kinetic energy, which is the and then you see the term which is the potential energy.
你在这里看到的是，动能的公式，这一项，是势能。
During this stage , the elastic deformation restores gradually the kinetic energy. Let the impact impulse be , then. Therefore.
该阶段中, 小球动能增大, 变形逐渐恢复。
Now, what we would like to do is we would like to convert all this gravitational potential energy into kinetic energy of that disk.
现在要做的，就是要转化，所有这些重力势能，变成圆盘的动能。
Theorem of the change in the kinetic energy of a particle or a particle system is a special form of the law of conservation and transformation of energy.
质点和质点系动能定理是能量守恒与转换定律的一个形式。
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