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Hey all, Is this right?? The fetch-execute cycle involves the performance of an instruction by the CPU, taking it from memory and splitting it into it's opcode and operand to calculate a result and change memory. 1) Program counter (which stores the current location of the instruction being...

I'm curious, also the only possible subject that I would ever see colour in is probably Bio, if anything..... do subjects like Geo do it??? for all their ✨fancy maps✨ how much does NESA waste on printing at officeworks per year!? 😱 😨 these are crucial questions

What's the difference and how would I explain what each one does?? Also what is an example of each? I would say that a grid or table can be represented by a 2D array, but I'm not sure what array of records do. Thanks!

I keep getting confused with these Thankss

Please let me know if I am correct here! BOTH related to the gene pool GENE FLOW = natural movement of genes through a population GENETIC DRIFT = random changes to the gene pool due to natural events --e.g., a storm wiping out half the population and altering the ratio of dominant:recessive...

I understand that it replicates DNA/a gene through a cyclic process (Denaturing, Annealing, Something??? --somewhere here DNA is heated and cooled?) but I don't quite know what each stage does / how it actually works. I also know that it needs lots of free nucleotides to work Also, how would I...

Hi all, I am making this thread as a mind dump of key examples for Bio trials based on questions seen in papers. Feel free to give some feedback and add examples! Thanks! THIS IS NOT A CLOSED THREAD - IF ANYONE HAS ANY OTHER USEFUL EXAMPLES PLEASE ADD AND ALSO PROVIDE FEEDBACK AND SUGGESTIONS...

I understand that it has something to do with identifying individuals in a population and DNA profiling? Also that somewhere there is a <1% involved??? If someone could please clarify this whole concept that would be great Thanks!

I was looking at past history and was wondering... if you get all rounder, what range of marks does your ATAR 'automatically' sit in? 95+? 96+? 99+??? Thanks <3

Hello. Hope you are having a nice evening if you see this <3 How am I meant to visualise this (part ii)? I couldn't imagine it and then ended up giving up - not realising that you just dot product AB with r1 and then AB with r2... and then solve normally with two unknowns :/ oh well part ii...

Hi all, Does anyone have a good comprehensive summary of the CPU / Fetch-Execute cycle? I always get confused between all the different registers, ALU, accumulator, PC, IR, buses, etc... Thanks

Do people agree with this summary?? I can't really tell the difference between prototyping and agile ngl... Approaches Structured - Staged approach with lots of members split up into teams, managed by a manager - Large scale projects - Long timeframe - Large budget End User - The developer is...

If I have a 10mL sample diluted up to 250mL using distilled water, and then take a 20mL aliquot of that - what is the best way to work out final concentration given the moles in that aliquot??? I always get confused and end up with a miscalculation... This is my understanding: 10mL sample -->...

Hello, When showing if a substance is amphiprotic, do I use equilibrium arrows or single direction arrows??? I.e., is it: OPTION A or OPTION B (from the trial paper solutions) Thank you!!

Hi all, Could someone please explain this to me? I got A... Thanks!

Question in title I've always just assumed that the lower pKa is the stronger the acid, and the higher pKb is the stronger the base - similar to pH. But I think there's a better way to explain this in a exam - could yall please help?? Thanksss

Hello all, Question is in title, the main ones I get confused with is stuff like net ionic... e.g., if I am working out the net ionic equation of Pb(NO3)2 + NaOH - which forms Pb(OH)2 as a precipitate - should my net ionic be an equilibrium - Pb2+ + 2OH- <--> Pb(OH)2?? Because normally I'd...

Hi all, Could someone please clarify what is rinsed with what in a titration? and possibly what the effects are of doing it wrong (e.g., experimental concentration is slightly higher/lower if we use water instead of the titrant - idk)? Suppose it's a titration of NaOH against CH3COOH, using...

Hello, Just confirming that we only need to properly know Arrhenius and Bronsted-Lowry theories for trials/hsc?? And that their theories are: Arr: acids dissociate to produce H+, bases dissociate to produce OH- BL: acids are proton donors, bases are protons acceptors Could someone confirm if...

From NSG 2020 Questions are attached: