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    State ranking the sciences

    Just out of curiosity, what would do you think is the cut-off raw mark to get a state rank in each of the science. Would it be around 92-93?
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    Hghest marks in 4U

    What are the top marks people (i.e state rankers) get in 4u out of 100. Also do many people get over 90 raw (or 110 raw for exams before 2012)?
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    Which structure is better?

    Which do u think is better in structure? Its for comparative study Structure1 Paragraph 1: Poem 1 + Play Paragraph 2: Poem 2 + Play Paragraph3 : Poem 1 + Poem3 + Play OR Structure2 Paragraph 1: Poem 1 + Play Paragraph 2: Poem 2 + Play Paragraph3 : Poem 1 + Play I used Structure 1...
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    Med - UNSW or UWS

    Which course do you feel is better : UNSW or UWS. And if you got into both, which uni would you choose. Please give reasons It seems like UNSW has better facilities and environment.
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    Extra paper in exams????

    Hey guys, For the science papers (Bio, chem, phys) are we allowed to ask for extra writing paper for the Section B (i.e. the long answers on the core modules) if we run out of space or make a mistake? And if I do use extra paper do you just leave it inside the writing booklet, and do we...
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    UNI MED interviews

    Does annyone know the specific dates for undergraduate medicine interviews at universities? Is it sometime in Dec/Jan? Also for the January interviews would it be around early Jan or mid? Thanks
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    volumes question

    Can someone please tell me what they get as the answer for this question. Find the volume of the solid of revolution when the arc of the curve y=sinx from x=0 to x=pi/2 is rotated about y-axis. The answer says its (pi)^3/4 - 2pi but I keep getting 2pi Thanks
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    Ozone Lewis Diagram

    Hey guys, When drawing the lewis electron dot structure for Ozone should we use different colours for each O atom to show that one oxygen atom supplies both electrons in the coordinate bond
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    Alpha and Beta Decay

    If a radioisotope undergoes alpha decay does the new atom formed have a charge of 2-? For example: 222-Rn (atomic number 86) ----> 218 Po (atomic number 84) + 4He(2) Since radioactive radon atom is neutral and the alpha particle has +2 charge then should the Po atom have -2 charge. Similarly...
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    DC motors help

    I just wanted to know - is the current in the rotor coils of a DC motor AC or DC. My friend showed me some question where it said it is DC but I'm quite sure that its AC due to the action of the split ring commutator. I mean - although the supply current is DC when the coil rotates past the...
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    motor effect questions

    Hey guys, Can someone help me answer this question. Is the wire moving 45degrees to the magnetic field or is it perpendicular to the field since it is directed downwards. I think its perpendicular but I'm kinda doubtful. Also is the force directed towards bottom right corner? Thanks
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    Escape Velocity Question!!!

    Hey guys, Can someone please clarify this for me : Escape velocity doesnt mean a satellite is in circular orbit right? It means it has completely escaped a planets gravitational field? Also I have a question where it asks you to calculate the Earth's escape velocity and I got 11200m/s...
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    Graphs Questions

    In exams how much working would be required for graphs questions. Do markers just look at the graph and check if u have all the main info. OR do they want you to give some info/brief summary? So for example if they give a graph of y=f(x) and ask for a)y= 1/f(x) and b)y=ln (f(x)) would this be...
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    Hard Conics Question

    Prove that if chord PQ cuts hyperbola x^2/a^2 - y^2/b^2 = 1 at P and Q and the asymptotes at P' and Q' then PP' = QQ' Can someone please show me how to do this. I tried both parametric and cartesian approach. And using distance formula gets way too complicated as there are like 3 or 4 terms...
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    UNSW High Acheivers Reception

    Hey guys, Anyone going to the unsw maths high achievers event next friday. Does anyone know any information about the event - is it just a guided tour of the campus and a speech. Or do students also receive awards - when i logged onto the site it said its a Medal presentation ceremony...
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    Help - Conics question

    1.Let S ans S' be foci of the general ellipse x^2/a^2 + y^2/b^2 =1 and P( x1, y1 ) be arbitrarypoint on it in the fourth quadrant. Here's a diagram from the question Show tan (phi) = -b/aey1. Is this question right? I keep getting b^2/aey1. Can someone tell me if my answer is...
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    cloning sheep

    Hey guys, can u please check if this is the right procedure for cloning a sheep (sheep in general, not just Dolly) 1. Extract somatic cell from mammary glands of donor organism and unfertilised egg cell from surrogate organism 2. Remove nucleus from egg cell using micropipette and insert...
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    Transport of Carbon Dioxide in Mammals

    Well CO2 is transported in three ways right- as carbaminohaemoglobin, hydrogen carbonate ions or dissolved in plasma. When i was reading my textbook it said minimal CO2 is dissolved in plasma to prevent excess H2C03 as this increases acidity of blood. But C02 is dissolved in water in the...
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    equations of the ellipse

    Hey guys Can you help me with these questions: Find eqn of ellipse with a) Focus (3,0) directrix x = 6, eccentricity = 1/2 when i equate ae=3 and a/e=6 i get different values for a. Is the directrix wrong. Or is centre not(0,0) Similarly b) Focus 1,0) D:x=9 and e=3/5 Thanks
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    Prelim Physics Question Moving About

    How would answer this question: Identify an example of technology that helped you to investigate forces and outline an advantage and disadvantage of using this technology. In your answer, refer to a specific investigation that you carried out in your class. Its from last yrs HAHS half yrly...
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