Physics Questions, Problems & Solutions : TransWikia.com ~ Page 844

How do we know the various sources for perihelion shift for Mercury are independent of one another? How do we know they are additive?

According to the table in wikipedia, there are multiple contributing factors that add to the precession of Mercury's orbit. What I am curious about is, how...

Asked on 08/08/2020

2 answer

Why are atomic mass and mass number approximately the same?

I understand that mass number and atomic mass are different by definition.Mass number is the total number of nucleons and isotopic atomic mass is the average atomic weight of all...

Asked on 08/08/2020

2 answer

The work done by Tension and Normal is not always zero

Like some forces act on a body placed in a "vehicle" at rest. The forces appear as if they never do any work on the body. Sometimes forces like Tension...

Asked on 08/08/2020 by Don't Worry

2 answer

Why do the turns of an electromagnet repel one another?

I'm trying to understand electromagnets and the relationship between magnetic field and current. Just thinking about a loosely wound coil, with an air core. Something on the wiki page "...

Asked on 08/08/2020 by toddy

1 answer

What is the most basic system that exhibits states of matter?

I'm trying to develop a more intuitive understanding of the states of matter..specifically the difference between solid and liquid. To this end, I'd like to consider the most basic system in...

Asked on 08/08/2020 by Niko Pipaloff

2 answer

Cylinder - surface contact and deformation

I'm trying to calculate the vertical movement (delta) of the center of a deformable cylinder in contact with non-deformable surface. The problem is presented on the picture in the link...

Asked on 08/07/2020

0 answer

Electric field and electric potential for spherical shell

We know that electric field inside a spherical shell is 0 . But electric potential 'V' inside a spherical shell is kQ/R (Q = charge on the spherical shell and...

Asked on 08/07/2020 by SUDEEPA GUPTA

2 answer

How to compute Physical Constants from given Calabi-Yau Compactification of Effective Field Theory of corresponding String Theory?

I got some interest in String Theory when I was listening to lectures of David Tong and Brian Greene. I remember them stating that the spacetime manifold is compactified to...

Asked on 08/07/2020 by Ashwin Balaji

1 answer

Could you know in advance specifically when a star will go supernova?

I've been thinking about star trek 2009 and star trek Picard in which they happen to talk about a sun inside a fictional solar system which goes supernova destroying a...

Asked on 08/06/2020 by The victorious truther

2 answer

Suppose there is a vector $vec v$ which is a function of time, then will $dfrac{d}{dt}|vec v|$ be a vector quantity or a scalar quantity?

Suppose there is a vector $vec v$ which is a function of time, then will $dfrac{d}{dt}|vec v|$ be a vector quantity or a scalar quantity? I think it...

Asked on 08/06/2020 by Akshaj Bansal

3 answer

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