# All Questions

134,907 questions
3 views

### Potential Flow integration [no-voice and very beginner!]

Let's say I managed to compute a velocity field that is divergence-free. How do I integrate it over time? meaning, I created a potential function, set v to be curl of potential function, so I have now ...
20 views

### What would the effects be on the world if light slowed down?

It would be really helpful if the effects were just given in a list form so I can research them. The reason why I am asking this is because I to write an essay regarding the effects of a change in a ...
22 views

### Physics theory/concept behind this question

The question is: Two cars start off at the same location and move away at constant velocities. At t = 0 s car A moves away with a velocity of 12.5 m s−1 NORTH and car B moves away with a velocity of ...
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### Can Mars have an oxygen atmosphere?

It is my understanding that, in its gaseous state, oxygen molecules move fast enough to achieve escape velocity. On Earth, we see this more clearly with helium. Regardless of what's happening on ...
9 views

### Why parity required simmetry)

I'm studying parity for the first time but there is something I don't understand. I read that a system conserves parity if every experiment is the same in a mirror that is also 180 degree flipped. ...
In $n$ dimensional Euclidean space, we only need one radial coordinate, and $n-1$ angular coordinates, where one ranges from $[0, 2π)$ and the rest range from $[0, π]$ Spherical Minkowski coordinates ...