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Ok another quick question from a clueless candidate in SDD... Can sequential files have a record structure? ie. I'm referring to the HSC 2003 Exam Question 21(d)(ii) PDF File Here If someone can be bothered to post a suitable algortihm? Thanks

After reading Sam Davis's algorithm on Binary Search which reads BEGIN BinarySearch Set Low to 1 Set High to number of items in list Set Found to False Get ItemToFind WHILE High > Low AND Found = False Set Middle to INT((Low + High)/2) IF ItemToFind < Item(Middle)...

wow...thanks a lot freedom_dragon

I've had a search around the forum however I am still a bit confused... Can someone link me or tell me where I can find DEFINITE rules in writing algorithms in psuedocode for... Arrays [Declaring, Accessing, Writing...the whole lot] Arrays of Records [The Whole Lot] Thanks btw...

This might be a bit simple... Get iron nails and steel nails/rivots (stainless and standard) and compare the rate of corrosion in 1. water 2. NaCl solution Variable - modify concentrations of NaCl solution Place all in test tubes exposing all the surface area to water/NaCl Leave...

94.....hopefully 95 if I prove my ester exists :)

I always write over if I beleive I need to....my handwriting is pretty big Basically your unrestricted to how much u write in the option topics...so yeah...might as well write as much as you see fit

Yeah I was referring to that question about beta decay

I was 'satisfied' with my results Multi - 15/15 Middle Section - 53/60 Option - Shipwrecks - 24/25 Total - 92 Potential Marks: +2 if I prove that Photographic Film can detect radiation....(it does right? I mean it's in Conquering Chem and Macquarie Chem) +1 if I prove my ester is...

did the CSSA Multi - 15/15 Middle Section 52/60 Optional - Medical - 23/25 Total - 90/100 :(

yes under any normal time I would have chosen 1.9 However I've been screwed over by a question like this before over the past papers i've done...the answer assumed it was diprotic so yeah I've always been assuming it ionises to it's fulllest...but then again isn't H2SO4 a strong acid thus...

pH of H2SO4 is C - 1.6 Diprotic therefore -log[2 x 0.0115] = 1.64 and the conjugate acid one was H2PO4- wasn't it?

maybe i'm deluding myself but didn't it say the electron balance was 'zeroed'?

Don't ever continue SDD in year 12...ambigious syllabus

Titration Question: 2NaOH + H2SO4 --> Na2SO4 + 2H2O NaOH volume = 0.02L concentration = ? H2SO4 volume = 0.03L concentration = 0.1 mol/L wasn't it? n=cv n = 0.003 mole NaOH = 2n therefore 0.006 C = n/v C = 0.006 / 0.02 = 0.3mol/L Sulfur Question 0.1% of...

The *think* the exothermic pair was the fermentation/combustion one.... this is from the website (googled) http://www.place.dawsoncollege.qc.ca/~rhanna/Ferment.htm Alcohol fermentation is an anaerobic (no oxygen), exothermic (heat-releasing) process in which sugars break down into ethyl...

Q5. the exothermic pair.... ?? no idea at all

How about buying the sound tracks instead of downloading them and ripping all the artists hard work off EH? I know someone in this thread who does big time illegal OST distro

BNW was published in 1932 World War II ended in 1945 I don't think Hitler's ideas were popular during Huxley's creation?

From 2002 Paper Question 9(b) A supperannuation fund pays an interest rate of 8.75% per annum which compounds annually. Stephanie decides to invest $5000 in the fund at the beginning of each year, commencing on 1 JANUARY 2003. What will be the value of Stephanie's supperannuation when...