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Simple Harmonic Motion with an unknown mass distribution [closed]

I've been trying to control a Segway robot using controllers and a bond graph model (I'm modelling it as an inverted pendulum on a cart), and I am not quite sure how to determine the moment of inertia ...
11 views

Can life decrease the entropy of an isolated system?

A high entropy isolated system is shuffling through its more probable micro-states. Local entropy dip produce several structures. These structures, akin to life, feed on free energy to preserve ...
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what's the difference between Laplace Force and Lorentz force?

Currently we are studying Laplace force, when I searched, I found also the Lorentz force, and I'm lost right now, I tried to understand it but I could not ! $$F=I\vec l \wedge \vec B$$ I didn't ...
20 views

Physics 2 electricity and magnetism [closed]

A total charge $+Q$ is uniformly distributed over thee volume of an insulating sphere ($\text{radius}=R$). On the other hand, a spherical conducting shell of radius $2R$ and thickness $t$ encloses the ...
31 views

Can electrons combine with neutrons to form negatively charged nuclei?

I've been wondering if electrons and protons could switch place such as constituent of an atom nuclei or that a proton "orbits" an electron instead ("inverted" hydrogen), are there forces on the quark ...
17 views

Right-hand rule for fields example problem

For context, I've started reading "Classical Mechanics" by John Taylor and I have a small problem with one of his examples: He gives an example of the magnetic force between two moving charges as an ...
39 views

28 views