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Wait so energy is GPE?

In GPE questions when it asks "calculate the energy________" what are they asking? Also when they ask for "change in GPE" how do you do those types of questions, I never got them

Is it normal to get a negatie answer when doing GPE questions?

In this question, what is the "R" value (not the answer to the question) The mass of the earth (Me) is 6.0 times 10^24 kg and its average radius is 6380km. Calculate the gravitational potential energy of a 20,000 kg mass raised to a height of 650km above the earth's surface (2 marks)

Curveballs in particular, mainly because I want to try the harder essay questions

So if I go on the internet, find 10 essay questions for Module A then look for some old HSC questions adapt those (including school questions) and want to find more (but can't find any) then how would I be able to either find my own essay questions or make my own?

^Title. Especially when you've run out of essay questions to do

Re: HSC Chemistry Marathon 2017 OH shit. DW I'll reanswer the question

You're prob not gonna get much out of that lol

BUMP

Biopolymer is a polymer that is produced by living things. Cellulose is produced by plants hence it's a biopolymer.

Re: HSC Chemistry Marathon 2017 The uses associated with polystyrene for airblown things such as eskies and styrofoam cups. Also can be used for transparent CD case and plastic transparent cups One biopolymer is biopol. Biopol is a PHB/PHV blend. it has properties similar to polypropylene and...

There's excel, penfox (pree sure this is suss), etc

Re: HSC Chemistry Marathon 2017 It doesn't matter, just answer it so then we can run the marathon smoothly again

Re: HSC Chemistry Marathon 2017 Just finished my POM notes but will need to spend a lot of time reediting and perfecting it lmao Same with phys but I'm only halfway there for space. Question: Describe how ONE named biopolymer is made AND explain its usefulness in term of it properties. (5...

Re: HSC Chemistry Marathon 2017 No he said "the biopolymer question isn't really hard" hence he skipped it

Does having a 'bad' sleeping pattern make it harder to focus during the HSC exams?

Re: HSC Chemistry Marathon 2017 Could you please at least answer it, or else it's going to defeat the purpose of the marathon

lol you used your time wisely Was it difficult concentrating on the train?

Did you have to use your phone/computer much for assignments at times?