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but how did u know that the setting was vertical... i thought it was horisontal on the ground or something (well without the friction).

Determine the sign and magnitude of the charge of the particle if its suspended motionless between the plates? (diagram attached) My trusty friend said its because this apparatus was vertically up so the charge has to be possitive since gravity pulls it down and the charge wants to go...

i said i didnt want to attempt and want to keep it. they said ok and wrote on my blue sheet "question booklets 0"

i dont think there would be any correct answer for that question. it said "from the line drawn on your graph" so whatever answer comes from the line u drew is right? i didnt draw the line like that :( interpreted it different as the steepest part involving most of those that had a gradient...

i always used to get confused with time.. cause its so weird to explain it, because it means that "more time has past" as in time runs faster from the outside observer than the inside observer. whenever i got confused i thought of this. ppl who did space travel aged slower... so less time...

dont need to be given.. its the same as electron but positive. Its on ur datasheet, questions about the proton have come up before without its charge being given, so most people should have been prepared.

wow, u ok? ok, lets pretend im wrong. the formula for it is M(accelerating) = M(rest)/sqrt(1 - v^2/c^2) now pretend V is 0.996c (almost the speed of light M(accelerating) = M(rest)/sqrt(1 - 0.996^2) now let M(rest) = 1kg M(accelerating) = 1/sqrt(1 - 0.996^2)...

(for those of you playing at home) http://www.savefile.com/files.php?fid=2168101

time dilation doesnt only occure at the speed of light it occures travelling at even like 1ms-1 its just the change is so small you will never notice it. very fast jets travelling does actually create a time dillation and it has been proven. Its not like its 100 seconds slower, it will be...

hey, its cause they were looking for ACTUAL proof that has happened... not "thought experiments".. as ppl have mentioned before: atomic clocks - one being sent away on jets and one staying on earth muons - takes then 16 ms to reach the ground but their lifetime is only 2.2ms particles...

well its 32 MB... Q16-27 if someone can host it... i can put it on my computer, but that woudl be super slow... 16KB/s ew.

NOT ATTEMPTED. haha jk i just found a set on the ground on my way out. so i have a nice clean complete set.

i didnt... i have the booklets in my hand

i hope people didnt write "amps" in their exam paper... thats not accepted... u either just do A or amperes. It'd be silly to lose a mark for something like that

hey, how should we have assessed it? i said that i gathered a few sources of information (some books and some internet) and i compared them against each and used my previous knowledge other to determine their integrity. and then i talked about how they work.... SUPER RAN OUT OF SPACE

no its just no one actually has Q16-27 but 25-27 were too long so i typed 16-24

16. From nearest to furthest, the four satellite moons of Jupiter first observed by Galileo in the year 1610 are called Io, Europa, Granymede and Callisto. For the first three moons, the orbital period T of each is exactly twice the period of the one orbitting immediately inside it. That is...

no no time will be the same for 40 degrees and 50 degrees cause they are similar but range will differ. Imagine it ... throwing something at like 89 degrees will have hardly any range... so its B. shorter range

1. C is wrong because you are thinking about vertical velocity being 0 however at the top there is still horisontal velocity if you did 3unit maths this would be a very easy concept to understand. and ofcourse the velocity is always changing so its A. 8. battaries only work on DC current...

most ppl picked D so ur probably right.. but i thought its B because if u change the way a wire is turned in a magnetic filed to be eg paralell to the field instead of perpendicular.. no force will be applied. So it will effect the current from some carrent to no current ?