The coordinate-systems tag has no wiki summary.
6
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3answers
129 views
From Manifold to Manifold?
Tensor equations are supposed to stay invariant in form wrt coordinate transformations where the metric is preserved. It is important to take note of the fact that invariance in form of the tensor ...
4
votes
3answers
253 views
Is the equivalence principle strictly fulfilled by general relativity?
The equivalence principle states
The outcome of any local experiment in a freely falling laboratory is independent of the velocity of the laboratory and its location in spacetime.
Any real local ...
1
vote
1answer
257 views
Understanding P-, CP-, CPT-violation etc. in field theory and in relation to the principle of relativity
I can never get my head around the violations of $P-$, $CP-$, $CPT-$ violations and their friends. Since the single term "symmetry" is so overused in physics and one has for example to watch out and ...
5
votes
2answers
200 views
Lorentz transformation in light cone coordinates in string theory
What is the explicit form of the Lorentz transformation changing the light cone coordinates in the light cone gauge in string theory? The extended nature of the strings complicate matters, especially ...
0
votes
1answer
200 views
Accelerometer Orientation Conversion
Got two accelerometers that are measuring accelerations oriented at +/- 45 deg from horizontal. I am looking to determine the conversion of the accelerometer measured data to accelerations in the ...
3
votes
1answer
167 views
Is General Relativity applicable for all coordinate systems?
My understanding was that relativistic physics can be expressed in any inertial coordinate system, but not arbitrary systems. That is, no experiment can determine if we are "still" or "moving" at a ...
1
vote
3answers
4k views
Find radius of curvature, given a velocity vector and acceleration magnitude?
The particle P moves along a space curve. At one instant it has velocity $v = (4i-2j-k)$ $m/s$. The magnitude of the acceleration is 8 $m/s^2$. The angle between the acceleration and the velocity ...
-2
votes
4answers
466 views
Why do Engineers manipulate coordinate systems? [closed]
When tackling a physics problem, An Engineer will manipulate the axes/coordinate system where a Mathematicians and/or Physicists will use the original coordinate system and math. Why do Engineers ...
2
votes
2answers
306 views
What is a Kustaanheimo-Stiefel transformation?
What is a Kustaanheimo-Stiefel transformation? Which applications has it in physics? Can you point me to a reference, where this transformation is explained?
-1
votes
1answer
313 views
1
vote
1answer
365 views
Does change of coordinate system require acceleration?
This question came about from a side discussion that arose on this:
Does GR provide a maximum electric field limit?
Can we change our choice of coordinate system completely independent of physical ...
1
vote
1answer
483 views
converting force from spherical to Cartesian coords
So I am working on my assignment, and have a question about converting coordinates. I dont know whether I should ask here or the math SE, so lets give it a try here.
The force in question is ...
6
votes
2answers
380 views
Is there any situation in Physics where the Right Hand Rule is not arbitrary?
We use Right Hand Rule in calculating Torque not because that's the direction torque is pointing in the real, physical world, but because it's a convenient way to indicate the "sign" of the rotation ...
