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Why is the ratio of two extensive quantities always intensive?

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3 $begingroup$ Is this something that we observe that always happens or is there some fundamental reason for two extensive quantities to give an intensive when divided? thermodynamics soft-question definition share | cite | improve this question asked 40 mins ago paokara mou paokara mou 98 4 $endgroup$ add a comment  |  3

What is the difference between 仮定 and 想定?

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4 I see a lot of different explanations online but I'm not sure if I understand the nuances correctly From what I can gather: 仮定 is used when a situation is unclear and an assumption is made based on facts and logic 想定 is used when imagining a possible situation and assuming it happened Considering this, I have trouble telling the difference between these sentences for example: 今,大地震が起きたと 仮定 したらまずどうしますか 今,大地震が起きたと 想定 したらまずどうしますか I would like a more detailed explanation and if possible, some examples that show where one would be used and not the other. meaning word-choice words usage share | improve this question asked 2 hours ago