Questions tagged [equilibrium]
Equilibrium is the condition of a system in which all competing influences are balanced. These can range from forces (static/dynamic equilibrium), to chemical processes (chemical equilibrium) and temperature gradients (thermal equilibrium).
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Identification of Stable, Unstable, Neutral Equilibrium
Definition of Stable Equilibrium - When a particle is displaced infinitesimally, it returns back to the mean position and starts oscillating about it. Unstable Equilibrium - When a particle is ...
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Equilibrium in all directions
Let's say the origin is an equilibrium position for a particle.
If we have a case such that a slight displacement of the particle in x direction makes it return to the mean position (stable ...
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Definition of Stable, Unstable and Neutral Equilibrium using Force
So I have read that a particle is in Stable Equilibrium when the potential energy is minimum, Unstable Equilibrium when the potential energy is maximum and Neutral Equilibrium when the potential ...
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How would a heat engine with 3 bodies work?
Say we have 3 equal bodies in contact, and there is a heat engine that absorbs and emits heat to these 3 bodies and it does work to an external medium.
How would that work? I imagine that it would get ...
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If two bodies are completely insulated from each other and are at the same temperature, Are they said to be in thermal equilibrium with each other?
I have read,
"Two bodies are said to be in thermal equilibrium if there is no net flow of heat from one to another"
And also,
"Heat is the form of energy transferred between two systems ...
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Show that equal pressure is the maximum entropy state
Some introduction and background
Consider a thermally insulated reservoir filled with some gas. The reservoir is divided in two by a fixed, thermally conducting wall. Initially, the first compartment ...
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Origination of internal forces in a beam under axial loads
Take a prismatic beam and subject it to a tensile loading, assume we are applying a load of 10 N on both of its ends. As we know, the beam stretches by a certain amount on either sides.
And since ...
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Calculate weight distribution on 2D plane
I am trying to figure out how I can have a formula for the weight distribution on a square. But let me just describe what I am doing,
We have the classical horizontal beam support problem
And I we can ...
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Repulsive charges in bounded potential
I'm interested in Centroidal Voronoi tessellation especially on disk.
When I got these diagrams, I thought I saw something like this
Looks like a relaxed distribution of identical charges inside the ...
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Difference between thermodynamical, statistical, and dynamical equilibrium
I have two related questions concerning the difference between thermodynamic, statistical mechanical, and dynamical equilibrium. In particular, I am thinking about the statistical physics of galaxies, ...
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Why is the surface of a static liquid always perpendicular to the direction of net force acting on the liquid as a whole? [duplicate]
In a, let's say rectangular container, the water surface always aligns itself perpendicular to the direction of net force acting on it. Why exactly does it happen?
(For example when this container is ...
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Intuitive understanding of the mechanism of uniform bending moment
So many explanations on uniform bending moment and I can't understand until now how it works. I can somehow visualise that in order to resist the external bending moments created by equal and opposite ...
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How to think about thermodynamic equilibrium in terms of virtual displacements?
I am currently taking thermodynamics and am finding the concept of thermodynamic equilibrium rather difficult to grasp. My textbook gives a definition in terms of the virtual displacement of with ...
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Empirical equivalence of shifted chemical potential $\mu_i$
It is often said that, in classical thermodynamics, entropy $S$ and energy $U$ are defined only up to an additive constant proportional to the total amount of substance $N=\sum_i N_i$ (where the sum ...
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Weight distribution and support polygon
I was working on a problem of supporting an object with sticks and wondering about some use cases that would fail.
My approach is to place the n-sticks (for example 4) under an object with mass m ...
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