Physics Questions, Problems & Solutions : TransWikia.com ~ Page 725

When will iridescence only happen when seen through a mirror-like surface?

The phenomenon is: A semi-opaque semi-rigid plastic sheet covers a window, if you see the sheet directly from any direction, there is no iridescence on the sheet. But if you...

Asked on 12/19/2020

1 answer

Are there any journals for physics that are similar to Crux Mathematicorum?

Basically, I'm looking for a physics journal that contains what Crux Mathematicorum does, which is basically a "problem solving journal" specific for the secondary and undergraduate levels. Preferably a journal...

Asked on 12/19/2020 by Evan Berton

1 answer

Do quasicrystals exhibit topological order?

According to the book Quantum Information meets Quantum Matter, ordered phases can either be described by a Landau free energy: symmetry-breaking ordered phases; or there are different...

Asked on 12/19/2020

0 answer

Relationship between electrical resistivity and density

I just read this answer on EE.SE and that triggered a doubt in me. If I were asked whether there is any relationship between the electrical resistivity and the...

Asked on 12/19/2020 by Lorenzo Donati -- Codidact.com

3 answer

Would the different cycles of universe in the Conformal Cyclic Cosmology Theory be the same?

Would each cycle of the universe lead to a same or identical universe?...

Asked on 12/19/2020 by Hiten Dalmia

1 answer

The connection between the wavelength and the atom level

In my textbook it said the following:Photons with wavelengths in the spectral range of $[94mathrm{ nm},104mathrm{ nm}]$, interact the hydrogen atom in the basic state. Photons having those wavelengths...

Asked on 12/19/2020

1 answer

Given Newton's Third law, why don't we have to include acceleration or energy lost to Earth in calculations?

This is probably an elementary question, but I am trying to help my nephew answer a worry. His question is: given Newton's third law, when a ball is thrown up...

Asked on 12/19/2020 by Kevin C Speltz

2 answer

Angular velocity vector from linear velocity vector

Linear velocity vector is $vec{v}$ and the distance vector is $vec{r} $. How is it that angular velocity vector is $vec{ω}$ = $frac {vec{r} ×...

Asked on 12/19/2020 by Shaurya Goyal

2 answer

What is going on with this generating functional? (QFT)

I am reading Peskin and Schroeder's chapter on functional methods and they compute the following correlation function:begin{equation*}begin{split}langle 0| Tphi_1phi_2phi_1phi_3 |0rangle &= frac{delta}{delta J_1...

Asked on 12/19/2020

1 answer

Proof that Vectors Describe Reality Correctly

When you hold a loose string by its two ends, and just let it dangle in space, it looks an awful lot like a parabola. I mean, on first sight,...

Asked on 12/19/2020 by SurfaceIntegral

1 answer

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