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  1. I

    Quick question on acceleration of a rocket

    Ahh i see, thanks.
  2. I

    Chem Question: Help!

    0_0. (6x12.01)+(12x1.008)+(6x16)= 180 180x5=900 900-4x180= 828.7 g
  3. I

    Quick question on acceleration of a rocket

    The formula for the acceleration of a rocket is T-mg/m How come when calculating the acceleration the g isn't taken as negative? because isnt it by convention, that gravitational acceleration is taken as negative when being opposed.
  4. I

    More Integration =/.

    These questions are from page 422, Year 11 Cambridge book, Ex 11F, Q8 and 9 Q8) a. On the same number plane sketch the graphs of the functions y=x^2 and x=y^2. clearly indicating points of intersection (this i can do) b. Find the area bound by the curves. Q9) Consider the function x^2=8y...
  5. I

    renewable ethylene

    Isn't it because sucrose, using sucrase to form cellulose which makes glucose using cellulase which is the fermented to procude ethanol using zymase which can then be dehydraded to form ethylene.
  7. I

    How many hrs per night?

    The subjects that you do, determine that.:D
  8. I

    Integration

    Find the area bounded by the graph of the given function and the coordinate axes: y=(x+2)^3 The answer is 4 units^2 What exactly are the boundaries for this question ?? :confused: This question is from the year 11 cambridge book, 11E, Q10 Thanks in advance
  9. I

    How well did u go for first HSC assessments?

    English- 1st from what i know, but i think i stuffed the second assessment Math 3u- top 10 i assume. Math 4u top 10 i assume PHysics- probably top 15 Chem- top 3 IPT- Not sure as of yet.
  10. I

    Results two days earlier?

    Lol well it is a big wait, so even two days can make a difference.
  11. I

    Extension maths

    Nah i doubt you need 90%+ in all school assessments, just maintain a decent rank. The marks required to get 45+/50 vary each year, depending on the canditure and difficulty of the paper.
  13. I

    Results two days earlier?

    Looks like us 2008'ers get our results on the 17th of dec as opposed to the 19th :P http://www.boardofstudies.nsw.edu.au/events/pdf_doc/event-timetable-hsc-2008.pdf
  14. I

    Why wasn't software included in UAI calculations?

    Scaling, i assume.
  15. I

    Reduction of water

    Umm, Oxidation is loss? 0_0
  16. I

    Regions of the Complex Plane problems

    Yeah it should be, but it should only be minus the negative part of the real axis as the positive part has an argument of 0
  17. I

    Syllabus progression how far are you?

    Basically finished, my teacher predicts we'll be finished by tommorow, the production of materials topic that is.
  19. I

    How well did u go for first HSC assessments?

    Area of study test, everyone in my grade does it, except ESL peeps
  20. I

    How well did u go for first HSC assessments?

    Woot got highest mark in grade for english( including extension 1 and 2 :)) for the first assessment, but after today's assesment i believe i'm screwed =/
  21. I

    What topics in preliminary year 11 Maths Ext 1

    I know this is old, but parametrics is in the year 11 book, i believe.
  22. I

    sin^2 x

    (sinx)^2, (sinx)^4 etc.
  23. I

    Assessment Ranks

    Unless she drops down from ext2 to ext 1, you should be first in 2 unit.
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