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Fuzzwood

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Posts posted by Fuzzwood

  1. Resonance: the sides of the soundbox can reflect the sound, which is hitting all sides from a lot fo angles. Due to the shape of the soundbox, the reflected waves will amplify eachother, and focussing the sound outwards in a single direction.

  2. Ok to add some fire to this discussion: there have been many observations of interspecies sex. The ones I remember are male dolphins raping about everything with a slit, whether it being female dolphins or sharks for example, or a chimpansee (iirc) having oral sex with a toad.

  3. Well what do you think would be easier to read: an equation polluted with ions which do nothing at all or an equation which isnt polluted with ions which do nothing at all? :)

     

    Its really the same as with mathematics where you can cross out certain stuff against each other. In both cases, a cleaned up equation is much easier to read and you see what is actually going on a lot quicker.

  4. I suppose you might consider the dimensions of the car if you were to need loads of people, who might not, potentially, be able to fit around the car. But this is clearly not the case.

     

    A good thing in questions like this is to single out the information you need. In this case all you need is that the car weighs 500kg and that 1 person can lift 80kg (so they're strong people!).

     

    As for the fact that the people can lift 80kg up by 1m, and you only want to raise the car by 0.2m... you can't really use that information because you can't relate lift height to lift weight (you would need more information. For example you cannot say that because it's only 1/5 as high they can lift 5x more weight or anything of the sort. As you cannot use this you cannot really account for it in the maths.

     

    Although if this is an estimation problem then maybe if it were, say, 10.3 people can lift the car up 1m, then round that down to 10 people can lift it 0.2m... but that's really iffy and you can't really justify it, so I wouldn't say it. Incidentally if it were 10.3 people needed, and obviously you can't have 0.3 people, then 10 would not be enough, so you would need to round up to 11.

     

    Sure you can: use a midget

  5. Indeed, this type of hydrogenation is usually accomplished by some kind of catalyst (activated palladium on a carbon carrier). Palladium holds the hydrogen on its surface, after which an alkene/alkyne is able to react with it.

  6. What is it with you and this kinds of stuff anyway? Sodium, chlorine, sulfur, fluorine? If you want to die so badly, just jump off a building. Not to discourage you or anything (chemistry is fun), but are you in any way aware of the dangers of those elements?

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