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I got reactants more than products - but if it is products more than you are right :)

did the emf graph start at maximum or 0?

yeah but because it wasn’t a horizontal plane mg affected it more and different spots - my teacher thinks it’s d as well

I got tp

mg varied tho ths it was release of energy - if reactants weigh more than mass has been lost in the form of energy

was that equation a transmutation or a fusion? also what was the last multiple choice answer?

last years was 76

what there’s literally no wayyyyy it’d be that high

I ruled out age because there were some that were on main sequence some white dwarfs some supergiants etc - thats allll different ages

I got mass too. What about the rocket thruster one? I guessed that

what mark do you reckon will be band 6?

ahhhh shit I’m such a dipshit - I made that error in the last question too then. root 3 isn’t the answer for the last one

but wasn’t the work on one calculated using 1/2d and the work on the other using 3/2d? because all the other factors are the same wouldn’t that make it 3x? what’ve I done wrong?

oh haha lol. for work I had the work on the second change was 3x as much as that on the first did anyone else get that?

I got root 3 as well is root 6 definitely right?

This is the solution (it’s the 2019 CSSA paper) but they’ve literally done pythagoras wrong so I feel like the questions just not right

when you use that formula you get a value for v less than 16.5 m/s

can someone help me with this? r= 25.6m and m=885kg the kinetic friction between tyres and road is 9420N the velocity you calculate in part a) is 16.5m/s on a non-banked road. thing is I keep getting a lower velocity for the banked road.

ok i did some research apparently the increase in binding energy per nucleon in fusion/fission reactions corresponds to a release of energy (as binding energy is actually considered a negative but that’s beyond the hsc syllabus) and that release of energy must manifest as kinetic energy.

I have a question. How does binding energy fit into nuclear fission reactions? Does the lost mass become binding energy AND kinetic energy? If this is the case, then why in the last question from the 2019 HSC do they not account for binding energy and assume that all the lost mass becomes...