
[力] 引力势,[力] 重力势
Notice that the gravitational potential energy increases.
注意,这里,重力势能是增加的。
Difference in balance time was found for top and bottom soil in the columns due to the gravitational potential of leaching water.
由于重力势的作用,土柱上、下层之间达到平衡的时间也有显著的差异。
You might be winded doing it the second way, but when you get to the top and you are at the 60th story your gravitational potential is independent of how you got there.
对于走路你可能很抓狂,但你一旦到了顶层,你就是在第60层,你的重力势能,与你如何到达那里无关。
Properties of space must depend on the gravitational potential.
空间性质一定与引力势有关。
Let me first give you the formal definition of gravitational potential energy.
我先给你一个对于,重力势能的形式定义。
The matter that falls onto the neutron star because there is gravitational potential energy released, and so the matter is so hot that, in general, it's highly ionized.
掉在中子星上,在掉落过程中已加热,重力势能,被释放,物体变得那么热,事实上它被高度电离,被高度电力的物体。
In this paper the secondary derivitative change of gravitational potential before Tangshan earthquake observed in Xiji seismic station near Beijing is presented.
本文介绍了唐山大地震前在北京通县西集地震台用扭秤观测到的重力位二次微商变化。
Rain energy and gravitational potential energy were original energies of rocky desertification form in nature ecosystem, and were direct or primary motivity.
石漠化形成的主要原动力是自然生态系统的雨水动能和重力势能,亦是其形成的直接动力或第一性动力。
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。
When I'm here, gravitational potential energy ; increases in this way; the gravitational force is in this direction.
重力势能,这样增长,重力;,是在这个方向,当我在这里。
According as the expanding of spherical harmonics of the gravitational potential, the radial correction formula and the estimating error model are given.
依据地球引力位球谐展开,推导了重力梯度张量的径向归算改正公式,并给出改正误差估算模型。
This is the gravitational potential energy.
这是重力势能。
The formal definition is that the gravitational potential energy at a point P is the work that I, Walter Lewin, have to do to bring that mass from infinity to that point P.
形式定义就是,它在点P的重力势能,等于我,将物体从无穷远处,移动至点P所做的功。
You can install a disk in your car, which I would call, then, a flywheel, And you can convert the gravitational potential energy.
可以在车内装个圆盘,可以称之为飞轮,可以转化,重力势能。
There is a conversion from gravitational potential energy to kinetic energy back to gravitational potential energy, and it will come to a stop here.
这就是重力势能,转换到,动能,再回到,重力势能,最终停在这里。
h2= we could now use the conservation of mechanical energy, and we could say, let us call arbitrarily the gravitational potential energy at point A, 0 let's call that zero.
?,So,now,what,is,h2?,Well,根据机械能守恒,我们知道,我们把点A的,重力势能,称之为。
The further way from you the atoms are, the greater will be what we call the gravitational potential difference between you and those atoms.
离你越远,你和这些原子之间的原子能就越大,我们称这个原子能叫引力势差。
Determining the distribution of gravitational potential energy and its effect on active deformation is fundamental to understanding the dynamics of continental deformation.
重力位能及其重力浮力是大陆板块内部重要的构造变形动力。
of the gravitational potential energy...
重力势能的关系。
In physics, you call potential, electrical potential or gravitational potential, the potential energy.
在物理学里面,把势,称为势能。
There are enough gravitational potential energy because the single anticline structure leads to enough discrepancy in elevation and inclination.
隧址区单斜构造形成的高差和坡度,为山体开裂提供了足够大的重力势能和载体;
We call mgy... we give that a name, gravitational potential energy.
我们把mgy叫做。,给它一个名字,重力势能
So this is a function y as a function of x and the curve itself represents effectively the gravitational potential energy.
因此这是关于y的关系,曲线本身,很有效地代表了,重力势能。
If I look at this result-- the sum of gravitational potential energy and kinetic energy is conserved - for gravitational force-- then it is immediately obvious where we put the zero of kinetic energy.
如果看这个结果-,重力势能与动能之和,在重力作用下,是守恒的-,马上,很明显的发现,动能为0的地方。
We will, many, many times in the future, use the one over r relationship for gravitational potential energy.
将来会有很多次,用到r和,重力势能之间的关系。
At the same time, the gravitational potential energy of the loads is consumed by resistance and can not be recovered in the traditional rubber tired gantry crane.
传统的轮胎式起重机在货物下放过程中,负载的重力势能无法进行回收,而是由系统的制动电阻消耗掉。
Consequent differential form and integral form of gravitational potential are deduced from the two laws of gravitational field.
根据引力场的两个定理,导出了引力势的微分和积分形式。
In computing these kinds of perturbations, the earth gravitational potential was developed up to llth degree and 11th order for all of zonal, sectorial and tesseral harmonic terms;
在计算这些摄动过程中,地球重力位对带谐、扇谐和田谐项都展开到了第11次和第11阶;
Whether you take the elevator to the top of the Hancock Tower or whether you walk up the stairs, the change in gravitational potential is identical.
不管你是乘电梯,去大厦的顶层,或者是步行,重力势能的变化是相同的。
And so the gravitational potential mgy energy of this object is its own mg y, y so I have to know what this y is, and therefore I have to know what this distance is.
因此物体的重力势能,等于,因此我必须知道,所以我要知道,这段距离是多少。
|attraction potential/geopotential;[力]引力势,重力势
引力势(Gravitational Potential)是描述引力场能量特性的物理量,表示单位质量的物体在引力场中某一点所具有的势能。其核心定义为:将一个单位质量的质点从无穷远处(引力势能为零的参考点)移动到该点时,引力场所做的功。引力势是标量函数,其数值仅与空间位置相关,单位为焦耳/千克(J/kg)。
在经典力学中,质量为 ( M ) 的质点产生的引力势 (Phi) 在距离 ( r ) 处的表达式为: $$ Phi(r) = -frac{GM}{r} $$ 其中:
对于连续质量分布(如天体),引力势通过积分计算: $$ Phi(mathbf{r}) = -G int frac{rho(mathbf{r'})}{|mathbf{r} - mathbf{r'}|}dmathbf{r'} $$ 其中 ( rho ) 为质量密度函数。
势能与力的关系
引力势的负梯度给出引力场强度:
$$ mathbf{g} = - abla Phi $$ 这表明物体在引力场中的运动趋向于势能降低的方向。
能量守恒
一个质量为 ( m ) 的物体在引力场中的总机械能守恒:
$$ E = frac{1}{2} m v + m Phi = text{常数} $$
权威参考来源:
"Gravitational potential"(引力势)是物理学中描述引力场能量的重要概念,具体含义和要点如下:
引力势表示单位质量物体在引力场中某一点所具有的势能。它描述将一个微小质量从无穷远处(势能为零的参考点)移动到该位置时,引力所做的功。其单位为焦耳每千克(J/kg)。
引力势的公式为: $$ V = -frac{GM}{r} $$
引力势与电场中的电势(( phi ))类似,均为标量场,简化了矢量场的复杂计算。例如:
如需进一步探讨具体场景(如卫星轨道计算),可提供更多背景信息。
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