Search results

  1. P

    Related Rates -- Fitzpatrick 25(a)

    Hiya there, any worked solutions to any of these would be appreciated :) Q26: Grain is ejected froma chute at the rate of 0.1m^3/min and is forming a heap on a flat horizontal floor. THe heap is in the form of a circular cone of semi-vertical angle 45'. Find the rate, in metres per minute, at...
  2. P

    Why do we get a really low value for Planck's constant?

    So, after measuring the voltage required to stop the photoelectron current induced by light of varying frequences, and graphing Frequency against Kinetic Energy (which is equivalent to stopping voltage), the gradient of our LOBF should equal Planck's constant of about 6.6. -- However, most of...
  3. P

    Related Rates -- Fitzpatrick 25(a) q25

    Could some capable person please tell me how to solve this? _______________________________________________ A point "P" moves on the curve y=x^3 and its x-coordinate increases at a constant rate of 5 units per second. At what rate is the gradient of the curve increasing when x=1...
  4. P

    Is this the complete description of Belonging as set by the Board?

    Hello :) I have a speech on Belonging coming up for which there is no specific question -- I am only asked to "present my view of 'Belonging' through an explanation of my prescribed text and its relationship to related texts." Now, I'm having trouble getting a thesis/intro up. I guess that...
  5. P

    Absolute Value Curves -- question from Patel 1B

    From Patel 1B, question 2(f): |y|=|x|+1 I tried it a few times, got a few graphs up, however none of them looked like the answer. Patel's answer matches up with Wolfram Alpha's, so it can't be wrong lol. Could anyone guide me through the steps to get the resultant graph? Thanks :o
  6. P

    New Excel version of the Patel book --- WORKED SOLUTIONS???

    My 4U class uses Patel, and it's quite an old version as far as I can see. It doesn't have worked solutions, and I can't seem to find any on the web. However, I've heard that the "Excel" version of this book has worked solutions. Is this it? EXCEL HSC - Maths Extension 2 Year 12 Does it...
  7. P

    Re: combustion of alcahols

    What would one say about validity? And how to improve it? I was thinking: --> soot formed at bottom of can shows that combustion is incomplete. Since the aim is to find molar heat of combustion, which by definition requires complete combustion --> INVALID? To improve validity to this effect...
  8. P

    Q's regarding 1st two Dotpoints of PoM.

    After going through the first 2 dotpoints (starting to summarise, finally) I've had trouble with a few things. Any help would be appreciated :) 1) If butane were cracked down to ethane + ethene, ie. C4H10 --> C2H6 + C2H4, how would these 2 products be separated? My Excel textbook has a diagram...
  9. P

    Trig Functions -- 2U Fitzpatrick 17(f)

    So I got everything in the exercise right, except for the last 2 questions, as below: Find the derivatives of: Q44) tan(pi - x) Provided Answer: -[sec(x)]^2 Q45) tanx` Provided Answer: (pi/180)[sec(x')]^ I'd appreciate if someone could explain you get to these solutions. Thanks :) Note: -...
  10. P

    Which textbook teaches the syllabus theory best?

    I've read the various Chem textbook threads but have a more specific requirement. -- Which textbook explains the theory the best, and sticks to the syllabus? I have big gaps in my understanding of Production of Materials & Acidic Environment. Literally failed our first test! Only textbook I...
  11. P

    Can I take up courses from other faculties?

    Can you take up majors, minors, courses or electives from a faculty that you're not doing a degree in? -- Say, I do an engineering degree, could I do a French course (from Arts, I guess)? Or a Business minor? Or a Psychology elective? Creative writing? And if so, would these count toward your...
  12. P

    Doctors/specialists that DON'T do surgery?

    Heya, a bit of a noob question here: Are there any doctor/specialist positions that don't involve surgery or cutting and needling people or hands in orifices? My experience with a few types of doctors in hospitals and private practices make me fairly eager to become one (+ there's the prestige...
  13. P

    Sites with loads of short stories.

    Hiya, Anyone know of any websites where I can find loads of great short stories for free? And by that I don't mean fan-fiction boards or learn-to-write boards. lol Anyway, looking forward to replies :rudolf:
  14. P

    Journal + notebook -- a few questions?

    I'm soon going to Officeworks to get a journal + notebook :D -- What kind of layout / size / no. of pages should I be looking at? -- Is it alright to get an average 192 page exercise book with margins? I just don't see why not? -- I'll also be getting a pocket-sized notebook...any suggestions...
  15. P

    "Explain the use of Cobalt-60 in terms of its chemical properties."

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="ProgId" content="Word.Document"><meta name="Generator" content="Microsoft Word 12"><meta name="Originator" content="Microsoft Word 12">Re: below dotpoint (or question...whatever it is) "<link rel="File-List"...
  16. P

    Need to get the rest of my textbooks -- urgent!

    An urgent question guys, would love if I get a quick response: Currently I have: Fitzpatrick 2U Fitzpatrick MX1 I'm doing 4U (starting Ext2 1st term back) and would like to purchase a Cambridge textbook -- Does the 4U book include 2U and Ext1 content??? (I know that the 3U has 2U...
  17. P

    A question on Percentiles...

    Hi there, I've entered some numbers into the Matrix UMAX calculator (for 99.9 ATAR...purely hypothetically, I assure you :P) and its told me what I need to get in my subjects to achieve a certain ATAR. English X1: HSC Mark -- 96.7 (halved because it's a 1-unit subject i presume) which is a...
  18. P

    10 or 11 Units?

    Hiya :cook: So I'm wondering whether to go through next year with 10 or 11 units. My courses atm: 3U Math 3U English 2U Physics 2U Chemistry I've signed up for MX2 and EE2, both of which will start in week 8 this term. So, my options for the road ahead are: 1) Keep my current setup. [10...
Top