In my opinion, the question https://physics.stackexchange.com/questions/47215/where-can-i-learn-about-transforming-uniform-random-distribution-into-other-dis?noredirect=1 is on topic here. That exact question is asked and answered in courses titled "Computational Physics" when they discuss Monte Carlo methods. Anyone interested in that question is vastly more likely to be a physicist than a statistician. Finally, the question received two very answers from physicists. The probabilities involved in the problem are not particularly difficult.
To clarify, I think it is a physics question because it is about a commonly-used physics tool. As a comparison, I use a differential refractometer in my research. A question about the internal functioning of a refractometer would clearly be on-topic. I see questions about the internal functioning of Monte Carlo methods to be on the same level: a question about how a particular physics tool works. I agree, though, that it is on-topic for SciComp; if it's off-topic here, it would be better there than anywhere else.