My answers in Q2Q were quite mediocre, never really mastered it (though i do think i pumped the de Broglie question)Q2Q was simple.
Interesting that all the big core questions came from Ideas.
Not very many hard qs, a couple of tricky MC though
It said 1g, look at what 'g' is on the data sheetI got 51.91 but not sure why g is 9.8. Is the space station being tested on earth
Yes this is correct.I got 51.91 but not sure why g is 9.8. Is the space station being tested on earth
Diameter is 550, r is 275. Bored of Studies are just being pricks.I got rotational velocity = 73.4m/s. I equated f=ma with f=mv^2/r. You get v = √ (ar). Sub in a as 9.8 and r as the radius as 550.
Diameter was 550!I got rotational velocity = 73.4m/s. I equated f=ma with f=mv^2/r. You get v = √ (ar). Sub in a as 9.8 and r as the radius as 550.
How much marks would they take off for this..?Diameter was 550!
YES.is it just me or were the CSSA trials piss easy compared to the HSC?
Only one, provided you get everything else correct.How much marks would they take off for this..?
Yeah, I got about 0.163 I think.+1 to the silly error count. What about the motor with the mass attached. Im not sure i got that. Did you say f=w=mg which is 0.49 N or something like that? Then for the next bit find torque using t=fd (with f from the previous question and d= radius of the shaft or whatever that was) and equate that with t=nbIAcosø to find current?
Yeah that's what I did. From memory 0.16 amps+1 to the silly error count. What about the motor with the mass attached. Im not sure i got that. Did you say f=w=mg which is 0.49 N or something like that? Then for the next bit find torque using t=fd (with f from the previous question and d= radius of the shaft or whatever that was) and equate that with t=nbIAcosø to find current?
ahhh son of a....Diameter was 550!
Yep I got this.Yeah, I got about 0.163 I think.
yes! got the same. what about the conductor P,Q and R question. Is net force 8 x10^-4 N leftYeah, I got about 0.163 I think.