22 May, 10:04PM in sunny Singapore!

Recent Posts by Jia Xun

Subscribe to Recent Posts by Jia Xun

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hi,I was wondering that since every year,cambridge sets a new variety of questions,is there any resource that are recommended to read up upon?Of course,that's after aquiring the basic knowledge of the H2 chemistry syllabus.:)(Like H3 stuff or uni-level understanding etc etc) Wih thanks for any relevant information!

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hi,I was wondering that since every year,cambridge sets a new variety of questions,is there any resource that are recommended to read up upon?Of course,that's after aquiring the basic knowledge of the H2 chemistry syllabus.:)(Like H3 stuff or uni-level understanding etc etc) Wih thanks for any relevant information!

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hi,this is quite a rush response but I hope people can help me on this.:)

      For TYS alevel N98/P2/15

      I do not know how to start the question,besides finding only one vector which the info was explicitly given.Really appreciate any relevant help given,thanks.:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hi folks,do help me with this A level question if possible.:)

       

      j89/p1/Q 16b

      The para. equations of a curve are x=at,y=at^2,where 'a' is a constant.

      The points P:(ap,ap^2) and Q:(aq,aq^2) lie on the curve.Find and simplify an expression in terms of p and q,for the gradient of the chord PQ.Deduce from your expression that the graduent of the tangent to the curve at P is 2p.

      Apparently I can do both parts of the question seperately which is useless.

      I have problems trying to find a suitable expression that can be used relevantly throughout the question.I appreciate all relevant help given and thank you all whole-heartedly.:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hey..Just asking,what was the state/clan(color) you were posted to this year in innova?:)

      Anyway,bio is something you would want to read up first.;)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hey people...I'm a college student..Oh gosh this is the first time I'm hearing such a comment.In any case,this two years of college life will be very fast.

      The rigour of A level curriculum is definitely much higher than that of polytechnics considering the amount of knowledge we are getting within this short 1 and a half years period.Be prepared to be learning really advanced stuff and having tests frequently.Not to mention having fun with the 'amazing' project work which...yeah,you'll be having fun with it....Together with your other subjects to study as well as cca.:)

      My point here will be to consider your decision carefully as it is really not a child's play once you are there.Study,revise and homework are part of the everyday activities for most of us.

      So yeah,for those of you who are willing to take up the challenge....Welcome aboard!To the life of muggers where we share our stress with each other,haha.

      PS:Do read up on your own if you have the time.;)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hi,i was wondering if anyone can help me with this question from the A level tys,N2007/P1/Q9 of H2 math.I don't know how to start off apart from using GC for the first part.Welcome any relevant explanations,thanks.:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • It is given that g(x)=[x+2 for 0<=x<2,4 for 2<=x<4]

      and that g(x) = g(x+4) for all real values of x.

      (i) Evaluate g(9)

      (ii) Sketch the graph of y=g(x) for 0<=x<=10

       

      Now the problem lies with the understanding of the equation given and how to go about 

      sketching it.

      Thanks for any relavant help!:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • 10cm^3 of a solution containing 0.800mol.dm^-3 of MnO4- ions were mixed with 10.0cm^3 of a 15.0moldm^-3 solution of hydrogen peroxide.Calculate the volume of oxygen that will be liberated at s.t.p

       

      A 16.5 cm^3 solution of acidified potassium dichromate of concentration 0.101moldm^-3 is reacted with a solution containing Fe^2+.What volume of a 0.500moldm^-3 concentration of Fe2+ solution will be required for a complete reaction?

       

      Hmm...How do I go about these questiond and also on back titration and endometric titration?Thanks in advance.:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hey,maybe I can help a while.If you were to take combined science,certain JCs would only allow you to take one H2 science from your subject(.e.g.physics/chemistry,either H2 chem or H2 physics but not both).My college still have to give bridging programmes for students coming from combined science background.:)

      H2 science aren't easy to start off without prior knowledge from pure sciences.But still,work hard and overcome everything.:)All the best for your Os.

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hey if anyone is on the look out for this shoe,adidas adizero adios 2,

      do send me an email:[email protected]:)

      Would appreciate if any kind souls will help me find that shoe,thanks.^_^

  • Jia Xun's Avatar
    22 posts since Jan '12
  • Jia Xun's Avatar
    22 posts since Jan '12
  • Jia Xun's Avatar
    22 posts since Jan '12
  • Jia Xun's Avatar
    22 posts since Jan '12
  • Jia Xun's Avatar
    22 posts since Jan '12
    • Haha nope,these are RI's tutorial questions.:)

      I'm revising though on every question given on this chapter.

      By the way,is your method related to gaussian's elimination?It looks similar.

      Thanks for the help!^_^

  • Jia Xun's Avatar
    22 posts since Jan '12
    • A cubic polynomial has equation given by y=ax^3 + bx^2 + cx + d.where a b c d are integers(the sign Z)

      Find one such cubic polynomial whose graph passes through the points (1,1),(2,2) and (3,3).How many such cubic polynomials intersect the x-axis at exactly one point?

      And also one more...

       

      A factory manufactures three different designs of bracelets,A,B and C.Bracelet A is made up of 4 white beads and 4 pink beads,bracelet B is made up of 6 white beads and 3 pink beads while bracelet C is made up of 3 white beads and 4 pink beads.A total of 70 white beads and 52 pink beads are used per day.How many bracelets of each design can be made per day?

      Really need help on these questions as I have a test next week.I'll appreciate any relavant help given.Thanks!:)

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Alright,thanks a lot.:)Will read up on that when I have the time.

      Maybe next time we can change the assumption to a real proof.^_^

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Originally posted by mancha:

      Will the big dumb guy ever like the smart alec dwarf?

      Apprently in the long run,yes.

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Don't laugh please,I'm interested to know the answer.

      Prove that 1+1=2 or vice versa.

      Any plausible answer would be appreciated.:)

      Thanks.^_^

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Well the loan shark still fears the police,and fear you for calling for them.

      Most probably they won't do anything now,better prep. up fast.

      Spy here spy there lor,with your neighbours help.

  • Jia Xun's Avatar
    22 posts since Jan '12
    • Hey guys.First of all,my results are none of the best.

      English 5,CH(geog) 6,CS(phy/chem) 2,Bio 5,E math 1,A math 2,CL 4.

      L1R4:16(A/B),14(C/D),L1R5:20

      Planning on taking up either business(accountancy) or math in uni.

      Enrolling in IJC science stream with this combi.:ECMP(my second choice is YJC PCME)

      What are your viewpoints?

      Well I can't enroll in spectacular JCs but at least the roof will really not fall on me.;)

      I'm happy with my results though.:)