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  1. M

    question

    EDIT; Basically, if you look at my dodgy diagram Find the angle indicated on the diagram and find X through basical trigonometry. Then use the cosine rule where: R^2 = R^2 + x^2 - 2 * R * x * CosTheta That should find you R
  2. M

    Micro Reform?

    Yeah, i kinda get what you mean. Like labour market deregulation may cause inequality in income and wealth, restricted macroeconomic policy for the government, etc.
  3. M

    Visual Features/Techniques

    What are some visual features or techniques that composers employ? Photographs, cartooons etc. Thanks
  4. M

    Make Your Own Prediction 2005

    93.35, because it looks like a good number. hehe jokes.
  5. M

    Micro Reform?

    For the individual - Short structural unemployment as certain inefficient industries shrink in their size of operation due to exposed competition For the government - Less revenue raised from tariffs and taxes etc. For the business - Some businesses and firms may close down because...
  6. M

    possible 2005 HSC economic extended response

    Btw If they do ask about impact of globalisation on Australia, What are some of the key points to write?
  7. M

    Chain Rule

    In simple turns for example ... y = 3 (x - 1)^5 1: You drag the first down and minus one from the power y = 3 x 5 ( x - 1 )^4 2: Then you differentiate whatever is inside the bracket y = 3 x 5 ( x - 1)^4 x 1 3: Simplify y = 15 (x -1)^4 Hope that helps
  8. M

    distance between coil

    Thats what i said, more field lines cut the coil as the magnet moves closer to the coil, thus larger change in flux and larger induced emf
  9. M

    distance between coil

    Well, its all related to magnetic flux. Remembering that whenever there is relative motion between a coil and a magnet, it results in a change in flux which induces an emf. So, as more of the moving magnetic field lines cut through the coil, a large emf will be induced. So as you move the...
  10. M

    Projectile Motion Question

    + a parabola is symmetrical, so initial velocity = final velocity on a flat horizontal plane.
  11. M

    couple questions, perms/comb der

    With 1) i). 15!/2. Why do you divide by 2?
  12. M

    couple questions, perms/comb der

    Nevermind my foolishness =)
  13. M

    couple questions, perms/comb der

    Lets see... i) 15! /(8! * 8!) ii) 7! *8! / (8! * 8!) iii) 10 * 10 * 10 * 10 = 10^4 Probably wrong but meh
  14. M

    Independent trials 2005 Q5.c)i)

    Is that the one where u gotta prove P = 10Theta + 20Sin(Theta/2) Just split the triangle into two. Use Sin(Theta/2) = Half AB / 10. Make HalfAB the subject and double it. And just use L = rTheta to get the arc length
  15. M

    Question 10 from 78 paper

    Umm. Lets see a) Car A is travelling at 60km/hr S = D/T 60 = 2 / T Therefore T = 1/30 hours = 2 minutes Car B is travelling at 60V km/hr S = D/T 60V = 1 / (1/30) V = 1/2. Therefore, Car B must travel 0.5 km/min to crash with Car A at Point 0
  16. M

    The Official Cricket Thread 2006/2007

    lol, If only the World Eleven had a few more Chris Gayles
  17. M

    why ABS use household rather than individual income levels?

    Because people are married and they share their income. So in a sense, if Person A earns $1 and his partner earns $90,000, the household in total aint poor.
  18. M

    The HSC Advice Line thread

    Serious? I wonder if the person would know though.
  19. M

    difficulties associated with reliable communications b/w Satellites + Earth

    -low earth satellites have a short period, so harder to track and communicate with since they are moving all the time. They are also prone to orbital decay and atmospheric drag. -Geo satellites have half a second delay during transmission
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