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Re: HSC 2014 4U Marathon Four digits numbers are formed from the digits 1,2,3,4. Each digit is only used once. What is the sum of all the numbers that can be formed?

Levitation is not caused by the Meissner Effect in maglev. Really strong magnetic fields provide really large like pole repulsion forces between the track and the train. These repulsive forces cause the train to levitate

Re: HSC 2014 4U Marathon A non-real number, w, is such that |w| = 1. If z = (1+w)/(1-w) find the locus of z as w moves on the complex number plane

Still plenty of space! Classes start tomorrow!

Yeah, that was a colour scan. The actual document itslef has not been published on the Ruse intranet yet. So, this is the best quality available atm

Also, reality is, if your school is tiny, they may not have teachers willing/capable or even have the staffing numbers needed to staff it. This made me sad on the inside :(

Yeah, there are some very stringent guidelines to be followed by teachers in the schools which use CSSA papers. We are not meant to even give out past CSSA papers to our own students, from what I have heard. Seems like most teachers are like #yolo though.

Thanks Ethan and Steven :) A 112 rank improvement in Year 12, Steven. Not bad ;) 2014/15 classes commence this Saturday peoples, still room in both of the classes. Please PM me or email me if you are interested!

Re: HSC Physics Marathon 2014 BUMP! 5 months, NO ANSWERS! CMON PPLS!

:P That's my dogs name :D

If you could share this, I will add it to the folders. thanks!

I have added a few here: http://community.boredofstudies.org/10/maths/327441/all-2014-trials.html

I have added a few here: http://community.boredofstudies.org/10/maths/327441/all-2014-trials.html

I have added a few here: http://community.boredofstudies.org/10/maths/327441/all-2014-trials.html

Here are all the 2u/3u/4u trials which I have collated thus far: https://app.box.com/s/vceevai42kuma4zh63ux Includes: Barker Baulkham Hills Caringbah Fort Street Girraween Gosford Hurlstone James Ruse Knox North Sydney Girls North Sydney Boys Penrith PLC Pymble St George Girls Sydney Girls...

Replied to all with ruse and Baulko papers: Here are a few more 4u papers: Fort St https://app.box.com/s/6aqgjjjq025uedrc75cs Caringbah: https://app.box.com/s/7qk0gwcxwj4hybgvzhh0 Gosford: https://app.box.com/s/j4yk28a8xbgpe200y4gt Sydney Girls: https://app.box.com/s/2d9ltkjc4i7yqt0povpx

Ruse: https://app.box.com/s/aju7hh14kbavwtj9yvqe Baulko: https://app.box.com/s/48mdfp8i07z56g61y5np Also have 2u/3u if interested, PM me.

Yes please!

Thanks for your kind words! Still space in my 2pm-4pm class

To me, none of the options are correct :\ A is incorrect as it just states that the eddy currents are induced above/below the magnet (In like fat air or sumn?) -- not in the Al tube B is incorrect as it implies the force opposing the magnets motion is due to the eddy current -- but it is due...