Answer: Find Second Moment of Mass & Energy for a Taurus w/E=mc2

  • Thread starter Thread starter colinbeaton1
  • Start date Start date
AI Thread Summary
Finding the second moment of mass for a torus involves calculating its moment of inertia, which is a well-established concept. Using E=mc² allows for the determination of rest-mass energy, but substituting this energy density into the moment of inertia calculation does not yield a new result; it simply alters the units. The discussion suggests that the term "taurus" may have been a misunderstanding, as "torus" refers to the correct doughnut shape. Overall, the relationship between mass, energy, and moment of inertia remains consistent regardless of the shape in question. Understanding these principles can deepen insights into physical properties, but the calculations remain fundamentally unchanged.
colinbeaton1
Messages
10
Reaction score
0
What could we learn if we found the second moment of mass for a taurus and use E = mc2 to find second moment of energy?
 
Astronomy news on Phys.org
We may be able to learn if a red rag has any effect ("taurus" means "bull") - perhaps you mean a "torus"? Sort of a doughnut shape?

The second moment of mass is just the moment of inertia.
So we know what that is.

E=mc^2 would be the rest-mass energy of something.
Just blindly substituting a rest-mass energy density for mass in the moment of inertia calculation will still get you the (non-relativistic) moment of inertia as before - just in different units.
 

Thread 'Potential biosignature found in Mars rock'

Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
View full post »

Thread 'Venus and Jupiter Conjunction'

Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it? Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with...
View full post »

Thread 'Our Beautiful Universe - Photos and Videos'

This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
View full post »

Similar threads

E=mc2: What is the Term for this Energy?
Replies
4
Views
1K
I Need a practical example of E=mc^2 with real numbers
Replies
1
Views
2K
I Does the generalized gamma distribution have a mgf?
Replies
1
Views
2K
Calculating Moment of Inertia for Hollow Cylinder w/ Water
Replies
40
Views
5K
E=mc^2 vs energy in strong interaction
Replies
4
Views
2K
What happens to electric charge in the destruction of mass by E=mc2?
Replies
8
Views
2K
I I'm calculating more energy out than I put in
3
Replies
138
Views
7K
First moment of area and second moment of area
Replies
4
Views
3K
E=MC2 vs The End: Can Energy Ever Truly Be Destroyed?
Replies
7
Views
3K
I What would a calculus author have to say on ##\int r^2dm##?
Replies
11
Views
2K

Hot Threads

Recent Insights

Back
Top