[力] 动能定理
A note on the applications of the theorem of kinetic energy;
运用系统的动能定理处理传送带的牵引力和功率问题。
The theorem of relativistic kinetic energy has been derived, and the normalized model of relativistic space charge wave is derived as well.
导出了相对论电子注的动功率流定律，求得了相对论空间电荷波的正规模式。
This paper points out that the method Lagrange Equations of the second kind for the system of particles from the theorem of kinetic energy is wrong, and analyses the causes of the mistake.
指出从动能定理出发直接推导具有理想约束的质点系的第二类拉格明日方程的方法是错误的，并分析了其错误的原因。
The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。
The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body. The practical value of it is pointed out using an example.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。指明其实用价值，并举例加以说明。
It is found that basic dynamic equations can be derived from the Chenzi theorem, including three Newton's laws of motion, kinetic energy theorem, the law of motion of the center of mass.
从陈子定理可以推导出质点动力学的基本定理，包括牛顿运动三定律，动能定理，质心运动定理。
A theorem on kinetic energy for variable mass-point and formula of work of recoil internal forces are given and the reason of soft-rope query is discussed.
给出变质量质点的动能定理和一对反推内力作功的表达式，并由此给出软绳问题的正确解释。
Many of these appear to be fairly uniform, so by the virial theorem the total kinetic energy should be half the total gravitational binding energy of the galaxies.
多数这些好象是很统一，因此靠维里法则总动能应该是星系总引力聚合能的一半。
In accodance with kinetic energy theorem, this paper presents an angular mo- mentum theorem of velocity instantaneous centre axis. This theorem is a ****** and convenient scalar equation.
从动能定理出发，推导出一个对速度瞬心轴的角动量定理，它是一个简便的标量方程。
The differential equations of motion of a particle constrained to moving in a constant speed are deduced from the kinetic energy theorem.
对于受速率为常数约束的运动质点，可以应用动能定理建立其运动微分方程。
The use of electrostatic theorem to explain chemical bonding has been criticized on the grounds of that it hides the important role of kinetic energy in bonding .
应用静电定理以阐明化学成键，基于它隐藏了功能在成键中的重要作用，曾受到了批评。
动能定理（Theorem of Kinetic Energy）是经典力学中的核心定律之一，描述了物体动能变化与外力做功之间的关系。其核心表述为：物体动能的变化量等于合外力对该物体所做的功。用公式表示为：
$$ Delta E_k = W $$
其中：
能量守恒的体现
动能定理是机械能守恒定律在特定条件下的表现形式。当仅有保守力（如重力、弹力）做功时，系统机械能守恒；当存在非保守力（如摩擦力）做功时，机械能转化为其他形式能量（如热能），但总能量仍守恒。
因果关系的量化
定理建立了力对空间的累积效应（功）与物体运动状态变化（动能改变）之间的定量联系。例如，汽车加速时发动机做功转化为动能，刹车时摩擦力做功消耗动能。
权威参考来源：
动能定理（Theorem of Kinetic Energy）是经典力学中的核心定理之一，描述了物体动能变化与外力做功的关系。以下是详细解释：
动能定理表明：合外力对物体所做的总功（W）等于物体动能的改变量（ΔKE）。数学表达式为： $$ W{text{总}} = Delta KE = KE{text{末}} - KE_{text{初}} $$ 其中：
示例：质量为2kg的物体初速度为3m/s，受合力做功10J后，末动能 ( KE_{text{末}} = frac{1}{2} times 2 times 3 + 10 = 19 , text{J} )，对应末速度 ( v = sqrt{frac{2 times 19}{2}} approx 4.36 , text{m/s} )。
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