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Physics : Recent Questions and Answers (Page 749)

Find answers to your questions about Physics or help others by answering their Physics questions.

Relation between area elements in finite deformation theory (continuum mechanics)

There are relations for the line and volume elements in continuum mechanics. For example:begin{align} frac{V}{V_0}&={rm det}(F)tag{1}...

Asked on 12/11/2020

2 answer

Does asymmetric rigid body experience torque-free precession?

I know that a top (or any axis symmetric body) experience torque-free precession.and I know that asymmetric body, with 3 different dimensions has stable rotation when the angular velocity...

Asked on 12/11/2020 by Guy Ab

1 answer

How to find the axis of rotation or location given the angular velocity?

Say I have the angular velocity vector of a body as a function of time. How can I determine the axis of rotation/location of the body? we have the equation:...

Asked on 12/11/2020 by proton

2 answer

Working Principle of a Transformer

From my physics textbook (Written by Halliday & Resnick),I came to prove that$$R_{rm Primary}=left(frac{N_{p}}{N_s}right)^2times R_{rm Secondary}$$ This formula is driven from the Conservation of Energy.But if there is...

Asked on 12/11/2020

1 answer

Could there be a region of the universe that is dominated by antimatter?

I was reading some texts explaining that since our region of the world is overwhelmingly dominated by matter, and not by anti-particles, this suggests that in some region of the...

Asked on 12/11/2020

1 answer

Energy distribution of virtual particles?

I have been trying to find the energy distribution of virtual particles i.e. to know what percentage of virtual particles would lie in a given velocity range. Couldn't find anything...

Asked on 12/11/2020

1 answer

(I-beam vs rectangular beam) Which sword blade cross section is less likely to break?

Original questionAssumption:i made several swords with different cross sections (lenticular, single broad fuller as in viking swords, diamond, hollow ground diamond)the blades are made using the same steel and have...

Asked on 12/11/2020 by MadCake - Reinstate Monica

1 answer

Optional Sensor placement

I have 8 thermocouples on a rectangular object (battery) heat is being produced within the battery and at the tabs where the current is flowing out. I’m planning on using...

Asked on 12/11/2020 by ChemEng

0 answer

How magnetic field changes the superconductor order parameter?

It is well-known that the superconductor repels the external magnetic field (below the critical field). However, I have not seen any literatures that argue about how the order parameter ...

Asked on 12/11/2020

0 answer

Are the fermions in 4D Euclidean $mathcal{N}=4$ SYM Majorana? If not, what are they?

It is stated in this paper (as well as in many other) that the fermions of $4$D Euclidean $mathcal{N}=4$ Super Yang-Mills (SYM) are Majorana fermions...

Asked on 12/11/2020 by Jxx

1 answer

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