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  1. mecramarathon

    Help ....

    well done both of you! (gosh should have thought of that...) could u or someone do the second q? plz thanks!
  2. mecramarathon

    Help ....

    The heat of combustion for ethanol is 1367 Kj/mol. Calculate the energy produced per tonne of carbon dixiode from the combustion of ethanol. The pH of a 0.1 mol/L solution of a monoprotic acid was measured by a student and found to be close to 3. What proportion of the acid molecules remains...
  3. mecramarathon

    pH question ...... //@.<)

    OMG thanks!!! :wave:
  4. mecramarathon

    pH question ...... //@.<)

    I can't seem to get the answer of pH 1.48 200mL of 0.1 mol/L NaOH is added to 100mL of 0.15 mol/L H*2SO*4. Assuming complete ionisation of the acid, the rseulting pH of thes olution is? cheers to the person who can explain this with equations! :angel:
  5. mecramarathon

    My teacher is a haughty, imcompotent, unrealiable egotist. What can my class do?

    i had a similar incident with mine, ended up with my head eng department saying to me, 'u have no right to judge ur substitute teacher, she is more than qualified to teach the HSC ... YOU NEED TO PUT IN THE MOTIVATION YOURSELF,' blah blah blah and my letter being photocopied and gossiped through...
  6. mecramarathon

    Paranoid Polynomial Problem

    How the heck do you solve this? A polynomial Q(x) = x^4 + px^3 + qx^2 - 5x + 1 has a zero at x = 1. When Q(X) is divided by x^2 + 2 it has a remainder of 1 - 7x. Find p and q. :) if u solve it
  7. mecramarathon

    Experiment Help! >.<//

    What experiment could you carry out in the laboratory to determine the solubility of copper II sulfate in grams per 100 mL of water using room temperature, 50 c and 80 c ?
  8. mecramarathon

    What units to choose for year 11?

    hey you should choose subjects that reflect the career you yearn in the end - a 99.95 ATAR doesn't bring all the hapiness in the world (temporarily speaking)
  9. mecramarathon

    them Sydney Trains moments

    Re: them cityrail moments some kid a few years ago pressed the orange emergency button as a prank and the whole station went into lock down, the kid legged it onto the incoming train while the ticket master yelled @#%%@$@%$!!!! a week later some forensics were swabbing the button
  10. mecramarathon

    conflicting solutions to this q

    how do you integrate by substitution the following q? x√(1-x) dx ? i get conflicting answers from fitzpatrick and cambridge! (in terms of positive and negative signs) thnx:jump:
  11. mecramarathon

    how do you achieve band 6's in the school certificate?

    To OP: OMG ur joking right?
  12. mecramarathon

    Volunteer Work?

    Felt like doing volunteer work for holidays :o Has anyone done a particular volunteer job that was worth it? What was it? How'd you get it? Cheers
  13. mecramarathon

    2009 HSC School Rankings

    HAHAHAHAHA the sydney morning herald didn't even mentioned it in its top 100
  14. mecramarathon

    Top School Predictions

    1. James Ruse 2. Baulkahum Hills 3. Hornsby Girls 4. Sydney Girls 5. North Sydney Girls 6. Sydney Grammar 7. Sydney Boys 8. North Sydney Boys 9 . Malek Fahd Islamic 10. SCEGGS Darlinghurst
  15. mecramarathon

    Max and Min

    use similar triangles - is this Q from 2U fitzpatrick? h = height of triangle b = length of triangle w = width of rectangle l = length of rectangle anyway (h - w) / h = L / b (corr. sides of similar triangle) therefore w = h - hL/b Area of rectangle = L x W...
  16. mecramarathon

    Gravitation Potential Energy help

    I have this stupid Q to do for physics Q: Would a massive planet have a higher or lower gravitation potential energy compared to Earth? My reasoning was: it depends because wouldn't a massive planet with a mass of 2m and a radius of 2r still have the same GPE value compared to earth with a...
  17. mecramarathon

    General Thoughts: English Extension 1

    Hey what was the question for the After the Bomb module? I'm deciding whether to drop ext eng or not :mad1:
  18. mecramarathon

    SOR I - Section 3! YOUR THOUGHTS

    that exam was jack shit unfair for those accelerated studentswe only did the preliminary course in like 5 friggin weeks!!
  19. mecramarathon

    SOR I - Section 3! YOUR THOUGHTS

    um it only asked for ethics and practice unless u mentioned dalai lama's view on ethics???OMFG how horrible were those quotes
  20. mecramarathon

    multiple choice help

    But i insist for ecumenism the answer is decline in number of christian adherents (it is true that the number of chrisitan adherents are increasing...)cause they were becoming less influential in an increasingly pluralistic and materialisitc and secularisitc society during the 60s - 90sand the...
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