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  1. BlackJack

    Another which uni... which course thing.. HELP!!!

    Hmm.. have you tried looking at non-university options as well? There is still time ahead, so do please email the faculties at universities, who may be kind enough to show you the way. Be very careful about "media and production" degrees as they may involve performing and shooting films more...
  2. BlackJack

    First year meant to be the hardest?

    Huh. I can't sleep yet, been sketching.. so decided to pop in once. Really just seeing how sketches look on avatars.
  3. BlackJack

    First year meant to be the hardest?

    Actually, contrary to popular belief free all day parking can be found at all times of the day (just don't tell everyone!). Spend time cruising around the suburbs near Usyd to find secluded spots. However, you'll have to take the 10~25 minute walk in addition to morning/evening traffic which in...
  4. BlackJack

    CHEM-biopolymers

    A. eutrophus is indeed a species of bacteria. The enzyme you're looking for will be along the lines of 'lactic acid polymerase' or some other -ase tem. However, check if you actually need to know the name of the enzyme(s) (there may be more than one involved,) and then look it up. I'm not aware...
  5. BlackJack

    Melting point

    Just as a general hint, noble gases have very low melting points. They're stable by themselves.
  6. BlackJack

    TSP - Talented Student Project

    It should be very fun for you guys. btw, you can get in TSP if you come just below in any of the categories.
  7. BlackJack

    brazil?!

    Well, if you're information is as new as 2004 then forget this: In Brazil, my impression of the current situation is this: there are a few percent of cars still sold as ethanol cars. However, ethanol use is NOT being wiped out. Two reasons: ethanol/petrol engines, and a presently functioning...
  8. BlackJack

    Using first person in responses

    My impression: "over-analysing". But, this author concurs: to sound more scientific, definitely avoid 'I', unless it is specifically your personal opinions. This is just to be safe in case an 'over-analyzing' marker comes along.
  9. BlackJack

    Geostationary satellite

    Of course not. :D But read it anyway. It'll help. edit: I'd rather not answer directly. There are geosynchronous and geostationary satellites. It's really a one liner.
  10. BlackJack

    Geostationary satellite

    Point: Any geostationay satellite covers slightly less than half. (So you only need three to cover the earth.) Synthesis of answer: - So you hire a shuttle place one over Newcastle with orbit period of 24 hours. - However, it has to orbit the earth. To do that, it must orbit the centre of...
  11. BlackJack

    phys vs bio

    Bwah, is there anyone else who does both? I like things to do with biology. Biochemistry, biomathematics, biophysics, I'm doing them all. Just not regular biology. Marine biology? Okay. Microbiology? Fine. Human bioology? Living systes? Interesting, but please, 'tis art! Physics is not...
  12. BlackJack

    Manhatten Project

    These links are highly outdated, from the days when I was still an active moderator (or even an extant one)! I'm sorry, but I'd have no idea where current ones are available.
  13. BlackJack

    more questions for you guys - urgent!!!

    1. If I remember right, the end point of a titration is when that first permanent, observable colour change is noted. This is a purely visual definition. Now, the equivalence point is when there just enough acid to cancel out the base (and vice versa). If you've seen the graphs for the...
  14. BlackJack

    help with motion problemz

    You are given mass and velocity: try dealing in momentums. The units tells you that total change in momentum is force * time.
  15. BlackJack

    please help with question on forces and motion

    For this question you want to balance the gravitys effect on the car against its centripetal motion. For the car to go around in circles, it must satisfy this equation: a = v<sup>2</sup>/r a is the acceleration towards the centre, this is provided by gravity. Do a little diagram, check the...
  16. BlackJack

    Sig Figs?

    Most is definitely not the answer. Least is usually the correct answer, but you should think about it before scrubbing everything out. For your example above, a "0.1M HCl" is probably more accurate than that 1 sig. fig., as it is usually made up carefully. Professionally speaking, the bottle...
  17. BlackJack

    currents and stuff q

    Oaky, this is what you need: Right hand screw rule ready. Current = fingers, B = thumb today. First look at the bar magnet as it falls towards the coil. (draw a diagram if needed) B field lines proceed from the magnet downward, through the coil. The strength of this increases, because the...
  18. BlackJack

    Max and Min Ques

    Do this: Set out your two equations, C(x)=x^2 + 10 x= 16-p Now, p is the selling price, C is the cost, x represents a number of items per hour. Your total gross profit every hour is selling price per item * items sold per hour. Which is x*p. You have assumed that you are selling those...
  19. BlackJack

    How important is the environment?

    Heh, I believe we're quite a bit beyond too late to prevent major damage, but that doesn't stop us from trying. Am a bit left of avoiding complete destruction - more like achieving a fair status quo. To be honest, the biosphere's still far better at conducting biological experiments than we...
  20. BlackJack

    ethanol Q

    That is so; sugar content of plants is rather minimal (in the millimolar). Almost all herbivores use bacteria in their intestines to break down cellulose and yeast has nothing to do with it. A note for biomass industry, they currently use plants with high sugar content to make ethanol...
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