Physics Questions, Problems & Solutions : TransWikia.com ~ Page 173

Is there a way to see linear and surface charge density as a “special case” of volume charge density?

When deriving Gauss’s law in differential form (GLDF), $$nabla cdot mathbf E = frac{rho}{epsilon_0},$$ from Gauss’s law in integral form (GLIF) we get a tidier formula, which is however...

Asked on 07/20/2021

2 answer

What is the fastest a spacecraft can get using gravity-assist?

Assuming normal spacecraft and space objects (no neutron stars, black holes, etc). To what speed can a spacecraft accelerate using gravity-assist? For example, if a spacecraft is moving at...

Asked on 07/20/2021 by Spacefan

5 answer

Motion in Rotating vs. Ground frame

Let us imagine a rotating platform moving with speed $omega$, and let us assume that this platform is non-frictional. So if we are placing an object in the platform...

Asked on 07/20/2021 by HARISHANKAR M

1 answer

Why is it so easy to break a pencil when part of it is composed of layers of graphene, an extremely strong material?

Graphene is one of the strongest materials in the world. It's a two-dimensional structure (insofar the overall extension in three dimensions is concerned): ...

Asked on 07/20/2021

1 answer

Would a tachyon be able to escape a black hole?

Or at least escape from a portion of the hole inside the photon horizon?...

Asked on 07/20/2021 by Richardbernstein

3 answer

Does the magnetic force has anything to do with induced EMF in Faraday's law?

So according to faraday's law, when there is a change in magnetic flux, there is an induced EMF. My understanding:In the reference frame of the magnet, the charge is...

Asked on 07/20/2021 by zenaiderrrr

1 answer

Localization length in Anderson localized systems

In Anderson localized systems, a great portion of the system's properties are governed by the localization length. These phenomena are well understood and have been studied for ages.However, I...

Asked on 07/20/2021 by Hagadol

1 answer

The difference between Work Energy Diagram and Integral of Force equaling Work

Answers I have so far: a) 2 m/sb-i) 50(1.5t^2+2)^2b-ii) 300tb-iii) 450t^3+600t For c), I used Work is...

Asked on 07/20/2021 by a23

1 answer

$ (5^* times 5^*)_{asym}={10}$ in A. Zee's book p.409 versus PDG Sec.114

What is the mathematical or physical way to understand why the 4th and 5th components in the Georgi Galshow SU(5) model has the SU(2) doublet $(1,2,-1/2)$:$$...

Asked on 07/20/2021

0 answer

Why is energy conserved here?

Two identical discs of mass M and radius R are connected by a light rod. The assembly rests at a corner,...

Asked on 07/20/2021

1 answer

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