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    UAI 99.85 Tutor: Maths Physics, Eastern Suburbs Area

    Hello All; I achieved a UAI of 99.85 in the 2006 HSC, and currently studying Mechatronic Engineering UNSW (Variety of Tertiary maths and physics based subjects), where I am ranked in the top 2% of my cohort. I am offering Tutoring services in: Maths--All levels including Extension 2...
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    Engg1000

    does anyone know what the projects are for the different options of ENGG1000?
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    Toshiba Laptop Specs--

    Like about a billion other posts im in the market for a laptop--having heard good things about Toshiba from about half a dozen people, I've Narrowed it down to 2 choices, and have a couple questions: 1) Toshiba Intel Core Duo Proc T2300 1.66Ghz Clok Speed 2Mb L2 cache 667 Mhz FSB, Intel...
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    Fitzpatrick Polynomial Q

    hey...ive got a question here from 36c fitzpatrick: q13: if alpha, beta are the roost of x^2-px+q=0 Sn denotex (alpha)^n +(beta)^n, where n is a positive integer, show that: Sn+2 - pSn+1 + qSn = 0 hence or otherwise find S3, S4, S5 in terms of p and q. Show by this method that (SQRT...
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    Naming Esters & prefix's

    i have this question "show the reaction between 1-pentanol and ethanoic acid, to produce the ester 1-pentyl ethanoate" and got thrown by the "1-" prefix on the ester what is the effect of such a number in front of an ester, in terms of its structure? thanks
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    Induction Heating

    I have one textbook (Jackaranda) that explains induction heating--i seem to understand it, but then i read the Surfing series sheets, and they say that induction heating only works for ferromagnetic (iron containing) pots--and copper and alluminium will stay cold--but make no mention of why...
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    Special relativity--flying clcoks east to west.

    heres a question that's got me screwed: "a plane sets out to fly around the world, carrying an accurate atomic clock. when it returns home will it have gained or lost time. explain" my reaction is to say that the clock on the plane will be in relative motion to the earth no matter which...
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    Probably easy--integration

    hey all heres a question..... this is from Fitz. 33f Q41 part iv for those who have the book...but anyway verify by differentiation: n∫cos^n x dx = sinxcos^(n-1) x +(n-1) ∫ cos^(n-2) x dx. (straightforward) hence evaluate ∫ sec^4 x dx between (Pi/4) and 0 (answer is 4/3)...
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    Relativity-- Mass energy equivalence

    this questions got me confused: "an electron travelling at 0.25c and of rest mass 9.11*10^-31 kg collides head on with a positron with the same mass but travelling at 0.5c. when matter and antimatter meet in this way they anihilate eachother to produce energy, how much energy is released"...
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    Terms of a geometric series

    I've got a series question that has me really stumped: "find the value of n if the nth term of the series : -2+ 3/2 -9/8 + .... is equal to -81/128" heres my working: Tn=ar^(n-1) where a=-2 r= -3/4 -81/128 = -2*(-3/4)^(n-1) 81/256= (-3/4)^(n-1) now taking logs...
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    Changing Orbits

    I think i might have seen a post like this on here a while ago...but i searched like a biatch for it and couldnt find it: If a sattelite accelerates to get to a higher orbit (obviously) then why, according to the formula for orbital velocity, does its velocity decrease? this has got me...
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    Projectiles And Orbits question--Newtons cannon

    "Ignoring Air Resistance, could an object be launched such that it lands 3/4 of the way around earth? Why?" My initial thought was no, any more than half way around and the projectile would continue in an orbit, but i dont know if this is right or not any help/thought appreciated...
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    Will HSC marks push UAI up or down

    Ok.... I'e done my HSC maths in Ex1 and Ex2, this year (but am in yr 11 for the rest of my subjects) Marks are: ex1 97, E4 ex2 85 E3 im aiming for a UAI of 99.00-- I have the option of repeating either or both of these courses next (this year) will the HSC mark, 97 in Ex1 push my...
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