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Joined 11 months ago
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Cake day: April 13th, 2024

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  • If you divide an inequality by a negative number you have to flip the sign.

    If you want to divide out the g before knowing if it’s positive or negative you need to make the case distinction.

    If you make the case distinction and one branch results in a false statement (5 < 2 in this case), you have disproven the original inequality, or at least discovered a constraint on the original inequality. Then you arrive back at FooBarrington’s statement that includes the constraint :-)













  • First of all: Sorry, I made a mistake yesterday. I ment to say liquid but translated it wrong in my head

    Now to your question, they are similar in some aspects, that’s what makes gasses and liquids both be considered fluids, so fluid dynamics apply to both for example.

    The difference is how much the molecules in the liquid or gas interact: A lot in the liquid, not significantly in most gasses under standard conditions.

    And the things is, the SLPM measure apparently relies on a characteristic of ideal gasses, that one mol of gas particles under standard conditions always takes a fixed volume 22.41 l. So now I’m confused why they would use it for hydraulic fluid, which sounds like a liquid to me.