MSD for non-ideal gas?
I've been thinking again. The formula for the Maxwell Speed Distribution for a non-ideal gas is [itex]\displaystyle f(v) = 4\pi \left(\frac{M}{2\pi RT}\right)^{\frac{3}{2}} v^2...
View ArticleQuestion about artificial gravity (orbitting earth) in space
Considering artificial gravity can be created in a large enough tube orbiting an axis at a fast enough speed, consider the following: If a spaceship is in a fixed orbit around the earth, wouldn't it be...
View ArticleMagnetism in a current carrying wire
If we use the right hand rule, we see that a hole current, or positive ion flow, creates a magnetic field around the wire where the flux moves in a clockwise direction. Counteractively, electron flow...
View Articlethree same-mass freight cars, why force on each is not same ?
Quote: QUESTION three cars of mass m are pulled with force F by a locomotive. Find forces on each cars ? assuming the force F is exerted on car C and nearest to C is car B and remaining one is A....
View ArticleConceptual doubts about capacitors and dipole antennas
I have some conceptual questions regarding capacitors and dipole antennas. Consider a parallel plate capacitor made with two conducting plates, initially uncharged. If I connect each plate to a...
View Articleearth magnetism and its application
if magnetic field induce current then why satelites or space ship doesn't gets electrified due to earth magnetism
View ArticleDoes Gradient of Fugacity Create Entropy?
There have been some discussions here as to what type of processes create entropy rather than just move it around. It is established that a gradient of temperature can create entropy. However, the...
View ArticleNorm and Metric in RG
Hi, what kind of norms and metrics are typical in coupling constant spaces when modeling RG flows, or even for elementary graphs like P-T graphs. I imagine they are Euclidean, but I was wondering what...
View ArticleIs there some sort of calculus relationship between these two kinematics...
[tex]{ y }_{ f }={ y }_{ i }+{ v }_{ yi }t+\frac { 1 }{ 2 } { a }_{ y }{ t }^{ 2 }\\ { v }_{ yf }={ v }_{ yi }+{ a }_{ y }t[/tex] It almost looks like the second equation is the derivative of the first...
View ArticleEffect of spinning magnets on gauss readings
My question is about the strength of magnets and how the strength is affected when you spin a magnet. When I use my meter to read the gauss of a permanent magnet I don't get much of a reading at all....
View Articleenthalpy and work(at constant temperature) are state function
Enthalpy is a state function because it only depends on the initial and final state. Work is a path function because its value depend on the path. So can I say work done on a system at constant...
View ArticleWhy is symmetry so important?
Here is a quote from Vanhees 71 in another thread on Lagrangians. I reposted here as a new thread because I fear going off-topic and redirecting a thread. Quote: Particularly it enables us to formulate...
View ArticleIs Energy proptional to frequency(standing wave)
Here is an extract from my Physics textbook. According to classical physics, each of these standing waves carries energy, and as their frequency increases, so does their energy . I don't understand how...
View Articleangular momentum of rod
What is the angular momentum of a rod rotating about one end (mass M and angular velocity ш),about its center of mass?
View ArticleEnergy transfer in electromagnetic induction
Consider a magnet moving towards a coil. We know that the motion of the magnet will induce a current in the coil and the direction of this induced current is to oppose the motion of the magnet. Now...
View ArticleTransmission coefficient
Hi I have a question on the transmission coefficient in classical optics. When we say that a medium has a transmittance of e.g. 99%, then 99% of the incident light intensity is transmitted. But will...
View ArticleTeeth double reflection in mirrors
Hello, guys! Yesterday I saw my reflection in a mirror and noticed that my teeth had two images on the mirror, and the rest of my face did not. I tried in different mirrors, and the result was the...
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calculate the appropriate dimensions for a magnifier and thin prism working...
Hi! :) I'm trying to calculate the appropriate lenses to use for a project. I need to magnify a 50mm by 50mm square image that is 40mm from a magnifying lens (with a radius of 12.5mm). Due to size...
View ArticlePoisson brackets of angular momentum components
I want to find [M_i, M_j] Poisson brackets. $$[M_i, M_j]=\sum_l (\frac{\partial M_i}{\partial q_l}\frac{\partial M_j}{\partial p_l}-\frac{\partial M_i}{\partial p_l}\frac{\partial M_j}{\partial q_l})$$...
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Plotting the polarization ellipse
Hello, I am tasked with plotting the polarization state of a laser (basically I've made a polarimeter), but I really have no idea where to go at this point. Below is a sample of the program I have...
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