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Does a black body emit radiation in quanta, as in discrete enerygy levels and frequencies or over the continuum of frequencies?

ahhh, i remember u. ur that full mad little (maybe not so small now) girl who used to beat every1 in estedfodds. farout, u went in like 18+ sections and won....haha. u kept taking my 1st places :( anyways, do u still play? and if u do, wat grade? must b F. mus by now, seriously! if ur not...

ok thx archman, i thought for the 1/(1+t^2) question that u do it graphically, as in graph the function, and shade in from t=0 to t=1 or something. is it possible to do it that way?

theres yet another question in the cambridge book that i cannot do! ok here it is: Prove that (lx+my+nz)^2=<(l^2+m^2+n^2)(x^2+y^2+z^2) Deduce that (a+b+c)^2=<3(a^2+b^2+c^2) Deduce that (a^3+b^3+c^3)^2=<(a^2+b^2+c^2)(a^4+b^4+c^4)

From inspection, this question is in the cambridge book, and its an example, so there is a worked solution :)

inequalities can be solved by adding and multiplying? can u give an example? i am lost in the whole 3 unit topic coz may teacher 'taught' the topic in 1 lesson

in general. like theres the AM-GM, trapezia...

ok so how many methods r used to solve these inequalities? apart from the trapezia.

oh........but thats a totally diff. thing, isnt it? coz thats used to approximate the area under the curve, whereas this is 2 do with inequality or something

thx for introducing me to this "inspection method" :) is trapezia stuff in the course? coz i've hardly ever seen it b4

does any1 know how nike got from -------nlnn - n + 1 > 1/2(0+ln2) + 1/2(ln2+ln3) + .... + 1/2 (ln(n-1) + lnn) to -------1/2lnn + nlnn - n + 1 > lnn! (adding 1/2lnn to each side) ???? im confused

oooops..hehe i forgot to mention that 0< t <1 my bad :)

also, for a spectroscopic binary, the spectra lines split because of one star moving toward, hence a blueshift and one star moving away, creating a redshift. Isn't this similar to a rotating star in that one part of the star is moving toward, while another part is moving away due to its...

can some1 give me an idea of what we need to know for the chapter binaries and variables apart from visual, eclipsing and spectroscopic binaries? i need like the overall big picture, coz i have no idea atm.

These are from the 2003 HSC. 4b (iii) After deriving the equation of the tangent to the standard hyperbola at P(asec @, btan @), show the tangent intersects the asymptotes at A and B. Prove the area OAB is ab. (I couldn't do the proof part, the rest is alright.) 4c) A hall has n doors...

moon_styla....r u james? if u r, i remember seeing u in eistedfodds and stuff :) and josephine.....is ur aunt a piano teacher? :P answer back to confirm my suspicions :)

exactly wat i wanna know :) i dont think our school's gonna mail it to every1 coz our school's pretty pov, so i dunno how we're gonna get it back.

yeh, that 1

When do maths comp. results come back? does any1 know?

thx for the explanation :) wat is x_1? is it x-1? im not used to reading symbols like _, ^, etc