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Physics : Recent Questions and Answers (Page 776)

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

Tensile force on a metal cable

Suppose you have a steel cable that has a certain elastic limit. Then I decide to use this cable to support an elevator of a certain mass $m$. Certainly...

Asked on 12/01/2020 by daljit97

1 answer

Why is the worst case input/output impedance of an $RC$ filter $R$?

I'm going through the Art of Electronics in my spare time, and I ran across a problem I've been scratching my head about for a few days. The book states...

Asked on 12/01/2020 by the_rogue_wombat

0 answer

What are the best resources for Crystallography?

I am undertaking a module in nanosurfaces and I was unaware that I would require some knowledge in Crystallography. The information that I must know regarding this area are Miller...

Asked on 12/01/2020

1 answer

Hyperbolic geometry in SR

I'm having trouble understanding just what the hyperbolas on a space-time diagram actually signify. From what I understand, these hyperbolas trace out the equation $S^2=x^2-(ct)^2$, which is the equation...

Asked on 12/01/2020 by DiracSea

3 answer

Travelling wave and phase velocity

I know it...

Asked on 12/01/2020

2 answer

Limits on Adiabatic Process

I am reading through the text "Advanced Engineering Thermodynamics" by Bejan that I found hereand have encountered a conceptual issue that I'm having trouble resolving on my...

Asked on 12/01/2020 by Jacob Wilson

2 answer

Does gravitational constant $G$ depend on energy of masses?

Just read that strong force coupling force will become weak near Planck energy while weak force coupling constant will become equally strong as strong force. Same will also apply to...

Asked on 12/01/2020 by user146021

0 answer

Linear Response And path integral

I'm following Wen's book on Quantum field theory, and I'm struggling with section 2.2.1 on linear response and response functions. Specifically I'm unable to reproduce equation 2.2.7 in...

Asked on 12/01/2020 by Joafigue

1 answer

Question pertaining to the number of possible worlds in many worlds interpretation

So I’ve been reading about the many worlds interpretation of quantum mechanics, and I keep seeing that they say that all worlds would come about. In repeatedly seeing the notion...

Asked on 12/01/2020 by mhk293

0 answer

Faraday disc volatage doubling

imagine two cases, in both cases we have two faraday discs spinning on the same axis in the same direction but let's imagine each disc has it's B field lines...

Asked on 12/01/2020 by Girts

1 answer

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