All Questions
Tagged with energy potential-energy
480
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Is the topic of gravitational potential energy convoluted and unnecesary? [closed]
If we throw an object upwards from the surface of the Earth, we do some work on it to give it kinetic energy. Now as it travels up, Gravity of the Earth does negative work on it till it loses all the ...
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How is thermal energy split between kinetic energy and potential energy?
Internal ("thermal") energy must be some combination of kinetic energy and potential energy, although most discussions of internal energy mention only the kinetic energy. However you also ...
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Energy and Force relationship
Is it right to think of Energy being what allows force(s) to happen? I know this is rather vague but is that a valid understanding?
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Why is energy not conserved in some cases? [closed]
I've got a lot of cases where the energy of the whole system is not conserved, that's probably because of some non conservative force.
One reason is that, the energy is transferred to heat, which is ...
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Does the internal potential energy of water in a tight container increase or decrease when it evaporates from heat transfer?
I am a physics and a chemistry student who needs help with a contradictory statement made by my books on the matter.
I was under the impression that internal potential energy of water would increase ...
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Why do we need to find minimum energy in a protein chain?
High–quality protein backbone reconstruction from alpha carbons using Gaussian mixture models
The above research paper is about a software tool for reconstructing a protein's main chain model only ...
user280949
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What is energy and how it is classfied?
My physics book defines energy like this:
"Everything that works has energy, energy $E$ of a system is a function of state and its variation $\Delta E = W$ ($W$ is work done on system)".
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How does a body know where it has min/max energy?
So today I was learning about equilibrium and I got to know that a body moves away from an unstable equilibrium because its potential energy at the unstable equilibrium is high. For example, in a ...
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How does a potential energy is found given the quantum energy states?
I have thought about it but couldn't figure out how can I find the potential energy given the energy states, I mean for example in Lennard Jones potential there is a finite number of discrete quantum ...
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Does an object's trajectory effect its kinetic energy? [closed]
I was wondering whether I could calculate the kinetic energy of an object, with mass m travelling along this trajectory, at point 2, by calculating its potential energy at point 1 with the point of ...
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How is the net work done on an object equal to the change in kinetic energy?
Let's say we have a ball at a height $h$ at rest. The total energy is $mgh$ which is the ball's potential energy. If we drop the ball, given that no external forces act on it, when the ball reaches ...
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Understanding the radial equation, why is the left hand side different from the right hand side?
Im studying the hydrogen atom and Ive realized that one side of the radial differential equation isnt equal to the other. What am I getting wrong?
Knowing that the potential for the hydrogen atom is $$...
user348127
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Energy in electric field of an isolated particle?
I learnt that the energy density of electric field is $\frac{\epsilon_0}2E^2$. However, I'm little confused about how can there be energy associated with an electron in empty space.
How can we have ...
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Distribution of interaction energy in electrostatic systems
If we have two electrostatic systems their interaction energy is given by
$$U=\epsilon_0\int\vec E_1\cdot\vec E_2dV\equiv\int\rho_1\phi_2dV\equiv\int\rho_2\phi_1dV$$ Here the integral is over the ...
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Is a chemical gradient part of the grand potential energy?
Recently I was trying to write an intuitive explanation of entropy, and wanted to check my understanding of a simple system is accurate. Here we have a box with two sides:
Starting off, there is a ...
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