Wikibooks:Study help desk/Archive (April 2007-January 2009)

Help!!! please.
a distress flare is fired vertically in the aire from a boat at sea. the height in metres of the flare t seconds after firing is given by h=122.5t - 4.9t²
calculate the maximum height reached by the flare.
how do you do this. please she working i really need help 
-- 09:18, 13 September 2007 (UTC)
Need help in translation. could anyone translate the context.
Please help me in translating this.
Subsemnatul ___________, domiciliat in Bucuresti, Calea Victoriei nr. 32-34 sc. A, et. 9, ap. 61, sector 1, nascut la data de 23.08.1945 in Oras Buhusi, jud. Bacau, posesor al CI seria RX nr. 289054 eliberat de Sectia 1 Politie, la data de 01.04.2005, CNP 1450823047797, invite in Romania in scop de VIZITA pentru perioada 10.05.2007-15.07.2007 pe Dna. __________, domiciliata in Filipine, Manila, posesoare a pasaportului nr. SS06334210 eliberat la data de 08.03.2006, valabil pana la data de 08.03.2001, eliberat de autoritatile din Filipine.
Ma oblig sa support cheltuielile legate de intretinere si in caz de inbolnavire sau accident sau de deces pentru porsoana invitata, pe toata perioda sederii in Romania, unde va locui la domiciliul meu. In situatia in care persoana invitata nu va respecta termenul de sedere, ma oblig sa support toate cheltuielile effectuate de autoritatile romane cu privire la aceasta, inclusive cele de transport pentru retrimiterea in tara de origine sau de plecare.
Mentionez ca as dori ca viza pe care o va primi Dna, Violeta F. Del Rosario sa aiba multiple intrari si iesiri, deoarece vrem sa vizitam Ungaria si Bulgaria.
Prezenta invitatie este necesara la Ambasada Romaniei din Manila, Filipine.
Redactat de catre parte, in trei exemplare, din care doua exemplare s-au eliberat patii, iar un exemplar s-a oprit la arhiva biroului notarial.l
How to down load a book from wikibooks..
Dear Sir / Madam,
Can you please guide as how to download a book from WIKIBOOKS, are all the books can be downloaded in PDF or any other format.
Reply back on apurvsawant@yahoo.com.
Thanks.
Hi, some books have PDF versions, in which case they have a template which signifies that the book has one. If it doesn't it's somewhat time consuming to make one, but if they have a "Print Version" which contains all of the pages in a book, you can open that and then save it as whatever you want (including a PDF, but printing it to PDF may mess up the formatting so beware. Good luck! 23:03, 8 June 2007 (UTC)
Can't get a TOC on a page I'm editing.
Hi! A page I'm editing Feminism/Elizabeth Cady Stanton isn't generating a TOC. What am I not doing properly?-- 02:01, 22 June 2007 (UTC)
how can I purchase (Gods Victorious Army Bible)?
I have a copy of the Spiritual Warfare Reference Edition.The copy that I have has fallen apart I would like to replace it.How can I get a copy did not see a tab where I could purchase this Bible.Help!!!!!!!!!!!!ŷ
Incomplete tutorial.
how do you complete the "Wings 3D: Tutorials: Modeling a generic helicopter",
tutorial?
i only see the making of the body part.
how can i see the rest of the tutorial?
Chemistry homework.
Please help. I am stuck with this fill in the blank questionnaire. 
When an atom absorbs energy, the electrons move from their "ground" state to an "excited" state. When an atom emits energy, the electrons move from a(n) "excited" state to their "ground" state and give off energy.
Thanks
Sean
 this is crazy fr
Student-Generated Text.
I am completely new to this technology and am diving in head-first to arctic waters! Can anyone provide me with any information about how they use this technology as an educator in the classroom? I'm looking for any history of use of Wikibooks and what you believe the prospects are for it in the future. Thanks! () 23:52, 12 February 2008 (UTC)
Limit of a function.
I have a little problem with the limit of the function mentioned below
formula_1
By writing tanx as sin/cos I am able to get a finite answer, which is 0.5. However, the answerbook says the answer is 0.25. I am unsure how this is so, but I have double checked the problem. If anyone of you here confirms that the answer is indeed 0.5 It'll be a good enough cross check! Thanks!
-- () 08:56, 13 February 2008 (UTC)
learning disabilities in african americans info.
i am writing a research paper on learning disabilities in african american youth, and am having a hard time finding adequate research material. i have found several articles on adhd a very common type in this community but am having trouble finding info on any others. Please help!
-- () 16:34, 23 April 2008 (UTC)nj
software enginering.
various devolopment models in software enginering? 
Organic Chemistry Help.
Show the mechanism of 2-butanone from an alkene of your choice? Were can I get the reactions of organic compounds like alkanes, alkenes, alkynes, amides etc...
Plzzz help me...
a little help.
please give me the name of a book through which i might be able to make solar cell of high voltage
heat enthalpy.
hello,um in my school i was not taught calculations in change in heat enthalpy and i would like to learn more especially on the calculation aspect.please could you help me.because i dont understand things by just reading textbooks unless i am taught.
Thanks
poles and zeros of transfer function.
hi everyone,
I am doing a project on classical and modern design of control systems, I have got a very basic doubt as to why we always consider the degree of denominator greater that or at-most equal to the degree of numerator(i.e why is always the number of poles should be greater than or at-most be equal to zeros for any general transfer function).Please help me out to answer this question in detail. 
Thanking you,
yours faithfully,
bhoomi