We first point out that gravity as a conservative force is very difficult (if possible at all) to portray as an entropic force. We then show that the derivation of the MOND relation using the elastic strain idea is not self-consistent. When properly done, Verlinde's elaborate procedure ...
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When used with alternative formulations it guarantees equivalence and conservative fields over a wide range of field choices from traditional metric space-time to background-embedded to emergent space-time. A short worked-out gravity-related inertia field example is given. New perspectives on spin ...
According to the characters of the work of magnetic force,the concept of potential energy can be brought in the non conservative system-magnetic field. 根据磁力做功的特点 ,在非保守场———磁场中也可以引入势能的概念 。4) work done by friction 摩擦力做功 1. A paradox of work done by fric...
We consider two interacting systems when one is treated classically while the other system remains quantum. Consistent dynamics of this coupling has been shown to exist, and explored in the context of treating space-time classically. Here, we prove that
In this paper, the strain expressions a manipulator arm are established. The strain expressions affected by gravity, suspension force and torque are considered as well. The arm model is simplified as a cantilever beam, which makes the de... S Tian,X Tang,Y Li - 《Iop Conference》 被引量...
Some very interesting models for demonstrating the dynamics of nonconservative mechanical systems have been proposed by Herrmann et al. (1966), the central item in which is a cantilevered pipe conveying fluid. Every educator in the mechanics area should be aware of this publication. (b) Buckling...
Renewed interest in deriving gravity (more precisely, the Einstein equations) from thermodynamics considerations [1, 2] is stirred up by a recent proposal that 'gravity is an entropic force' [3] (see also [4]). Even though I find the arguments justifying such a claim in this latest ...
During a portion of this time, lower altitude (∼220 km) tracking of MRO was collected while the Spacecraft force models In order to recover the Mars gravity field and orientation, all the nonconservative forces acting on each spacecraft must be modeled accurately. The three major force ...
One could demand that it is a Moore–Penrose pseudo-inverse, which always exists and is unique, picking out one particular solution. Thec_ishould not be explicitly evaluated under the integral in case they accidentally vanish before being replaced by the loop-momenta dependent kinematic factors. ...