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Steps I wrote to reduce CFCs was that mentioned above plus, removing chloride radicals through its reaction with methane and also removing chlorine monoxide radicals from the atmosphere through its reaction with nitrogen dioxide

Nah man, for 17Q, my trajectory was below original trajectory. But I'm probably wrong, should of figured out that question tried to trick me lol. I found multiple choice wayy more difficult than the rest of exam

For the last question in core topics, regarding Mars and energy supplies to light bulb. Did anyone get 7.48 joules??? Or am I wrong

I feel like it would be incorrect to talk about Lenz law for 5. I just said that due to law of conservation of energy, the rotor coils would be harder to turn (rotational kinetic energy) would decrease as the mass falls faster, thus mass falls experiences opositional force compared to when...

Re: HSC Chemistry Marathon 2017 There is an overwhelming need for alternative sources that are presently derived from the petrochemical industry (e.g. Currently crude oil) - This is because crude oil is a fossil fuel, and is hence a non-renewable resource. Based on current usage stats, crude...

I like that you're exact, but just use 24 hours. It's so much easier to convert 24 hours into seconds compared to what you got there. 24 hours is fine, I don't think you will lose a mark

Nah you're not totally wrong, like Principle of Relativity didn't say anything about the constancy of speed of light 'c', Einstein did in his STOR. Principle of Relativity mentioned what I wrote above, but Idk how it conflicts with aether model of light transmission. Is it because aether model...

Hang on, I thought special theory of relativity stated speed of light constant not principle of relativity. Cause Principle of Relativity stated by Newton I think, he said that laws of physics are the same in all inertial frames of reference and that there is no absolute frame of reference

Hi guys, I wanted to ask for help with this question: Describe how the principle of relativity conflicts with the aether model of light? I pretty much just explained what the principle of relativity is, but can't answer all of the question. Help?

Re: MX2 2016 Integration Marathon Oh and the answer is 3pi/16 x ln2

Re: MX2 2016 Integration Marathon Here's the question folks

Re: MX2 2016 Integration Marathon Hey guys, I got a hard one for you people. Integrate limits (0 to 2) [ln(x+2))/x^2+4 .dx

Oh thank you! Also, how do you convert from g to mg? Do you times 1000?

Thanks in advance. ONe more question. Is this really trial questions?

Hello BOS ppl, can anyone help me with these questions. I have really dodgy answers and don't know whether it's satisfactory. 1. Give two reasons why care needs to be taken when collecting water samples for testing. (2) - Take samples of water not near the bank of the water body, as this may...

Hi all, I recently asked one of the nice ladies from the office to see my attendance percentage. And it was awful, my absences and partial absences added to 76.5%. I heard you wouldn't be able to receive your HSC results, if it's below a certain percentage. I'm too afraid to ask my teachers, or...

What's a resonance formation?

I read that O2 is more stable than O3, since to decompose oxygen its double bond has to be broken and that requires a lot of energy in comparison to the less energy taken to decompose the single (coordinate covalent bond) in the ozone. Therefore, O3 is less than O2. But, what I don't...

http://web1.carlingfor-h.schools.nsw.edu.au/content/sites/students/science/year_12_chemistry.htm Go to Chemical and Monitoring section and click on the HSC questions. Questions in that doc are sorted according to dotpoint. You're welcome

I wanted to ask if any of you people have the slightest idea of what to do after high school? School is nearly ending, and I don't have a dam clue of what I want to do outside school. Has any of you ex HSC students stress out about this problem? Not knowing what you want to do? Btw, if you knew...