umm .. didnt it say volume? that's why they only shaded half .. cos when it rotates it overlaps with the other half ... right?
so yeh you just do it like a normal integration right? like the pi integral ( y-1)dy between 1 and 5 right????
yeh i'm convinced .. it's definately 0.3 ...
my only hope now is that .. since it makes specific mention in the question that the "electron starts from rest" .. the measurement of the distance was taken whilst at rest .. and hence not contracted .. in which case the whole question was a...
that's only in semiconductors .. but in conductors .. i.e. metals .. as temperature lowers .. vibrations int he lattice stop .. and so the resistance decreases .. it was one of the multiple choice questions ..
i dunno yorky man .. i put .19 as well .. cos that's what i think it is .. but then i guess what they're saying makes sense .. cos it's the electron moving .. not the tube .. if it was the tube moving .. then the tube woud shrink .. and hence the distance would shrink .. but since the electron...
for the copper block and bar magnet question .. is copper a super conductor?? did you all write the meissner effect for when ti's cooled to -50 degrees?
cos i didnt .. i didnt think copper was a super conductor .. and so i said that the magnet falls at a much slower rate but still falls ..
i dont get why people talked so much about this old guy .. i virtually ignored it .. i just had a dude watching a tv documentry where an old man was telling of how he changed the life of a child .. and then had my dude reflect on how he's wasting his life ... :|
How many texts of own choosing do we need for the HSC? For imaginative i'm doing coleridge, so that's 2 of his poems, one from stimulus .. but how many of our own? 1 or 2 or 3 or what? because i've heard that we need 2 .. but 5 texts in what's supposed to be 40 mins seems quite crap. . .
nah the question was fine, the teacher that marked it told me that there wasnt enough discussion, and techniques. what i dont understand is why my teacher didnt tell me that
Hey guys, for english essays .. if your teacher says you have a perfect essay .. like guaranteed 100% ... and you write it in a test, and the teacher that marks it thinks it is very bad, and you get a bad mark. is there anyway to appeal because you were mis-guided?
Hey does anyone have the answers to the 2001 HSC past paper??? sort of need it because i'm sort of stuck and i have a really incompetent teacher, so yeh, if you could please post up the answers, or refer me to a site that contains the answers i would be very much obliged... thanks...
hi, i'm a student at James Ruse Ag High school who will be completing an accelerated HSC course in IPT this year. i was wondering wether anyone could give me any information about a distinction course, as i was looking to study cosmology next year.
hey guys can any one tell me if their is a required time that teachers have to tell you when there is an assesment os we have our Assesment on the 24th of march, and our teacher told us yesterday... he also hasn't even told us what's gonna be in it cos he's making the test and he's saying and i...