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  1. H

    Mathematics: Post your doubts here!

    Re: Maths help available here!!! Stuck somewhere?? Ask here! @ ghalya chek out these vids and those in suggested vids relating to this http://www.youtube.com/watch?v=ijIw4dFN89w
  2. H

    Chemistry: Post your doubts here!

    Re: All Chemistry help here!! Stuck somewhere? Ask here! http://www.chemistry.jamesmungall.co.uk ... amples.pdf http://www.chemistry.jamesmungall.co.uk ... cycles.pdf it explains what goes on behind the scene in that DELTA Hf formula
  3. H

    Physics: Post your doubts here!

    Re: Physics Help here! Stuck somewhere?? Ask here! :) 1.explain in terms of kinetic energy,why temperature of a stone increases when it falls from a cliff and lands on the beach below? 2.Explain why the barrel of bicycle pump gets very hot as the pump is used to pump a bicycle tyre
  4. H

    Physics: Post your doubts here!

    Re: Physics Help here! Stuck somewhere?? Ask here! :) well....i read this strange line in physix course book....that when u compress a gas it becomes hot....in other words its internal energy increase.....bt if work is in done on the gas as in this case....shud not the internal energy decrease...
  5. H

    A level Biology: Post your doubts here!

    Re: Stuck in Biology?? Post your doubts here!! whats the role of VASA RECTA.....and ....is vasa recta the name for blood vessels around loop of henle via peritubular cpillaries for around distal and proximal?
  6. H

    Chemistry: Post your doubts here!

    Re: All Chemistry help here!! Stuck somewhere? Ask here! A 35.0mL sample of 0.150M ethanoic acid, is titrated with 0.150M NaOH solution. Calculate the pH after the following volumes of base have been added: 17.5 mL
  7. H

    Chemistry: Post your doubts here!

    Re: All Chemistry help here!! Stuck somewhere? Ask here! A 20.0mL sample of 0.200M HBr solution is titrated with 0.200M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added: 15 mL ANYBODY ????
  8. H

    Chemistry: Post your doubts here!

    Re: All Chemistry help here!! Stuck somewhere? Ask here! tonnes of CHEMISTRY WORKSHHETS http://www.chemactive.com/a_level_chemi ... tions.html
  9. H

    IS there a global CONSPIRACY AT work?..

    yea very tru indeed @ ctruth is bitter and hard to digest........
  10. H

    Cristiano ronaldo or Messi??

    RONALDO....THE best ever
  11. H

    IS there a global CONSPIRACY AT work?..

    the next step is that u wach this video ........just a 10 min video not abt illuminati HYSTERIA.....bt a very gr8 approach using quran hadis and modern world situation..... http://www.youtube.com/watch?v=-fJsfWI-KI4 then i recommend u to analyse list of nobel laureates......and search on jewish...
  12. H

    IS there a global CONSPIRACY AT work?..

    yea MOST PEOPLE GET SCARED AFTER WACHING ARRIVALS.....SO I AVOID THIS approach......instead..i belive in an approach based solely on quran and SAHIH hadis....u can READ SOME PART OF THIS BOOK...... http://imranhosein.org/media/books/ivgmmw.pdf
  13. H

    A level Biology: Post your doubts here!

    Re: Stuck in Biology?? Post your doubts here!! WELL SOME BODY CLEAR ME....THAT IN LOOP OF HENLE WATER IS GIVEN OUT TO PERITUBULAR CAPILLARIES OR TISSUE OF MEDULLA?
  14. H

    RUBISCO activity

    With reference to Fig. 4.1, list two visible features of the cell B that allows the pore to open and close? ref. to chloroplasts ; sausage shaped / AW ; joined only at ends ; unevenly thickened walls / thick above and below / thin furthest from the pore ; ref. vacuole ; the MS is horrible.....i...
  15. H

    RUBISCO activity

    this taken form ms of question abt role of stoamta in relation to photsythesis....wat the helll is EDGE effect???
  16. H

    RUBISCO activity

    "er says that it is wrong to say that there will be comppletely no fixation of co2 at lower conc . of co2 bt i learnt that at lower conc....rubisco's carboxylase activity finishes and instead oxygenase activity occurs so CO2 must not be fixed then......cn any one clear this contradiction with ER
  17. H

    Mathematics: Post your doubts here!

    Re: Maths help available here!!! Stuck somewhere?? Ask here! question is rong
  18. H

    Mathematics: Post your doubts here!

    Re: Maths help available here!!! Stuck somewhere?? Ask here!
  19. H

    stoma CONFUSIONS

    k...bt i wanted to ask abt microfibrils thing
  20. H

    stoma CONFUSIONS

    "In most angiosperm species, the cell walls of guard cells are uneven in thickness, and the cellulose microfibrils are oriented in a direction that causes the guard cells to bow outward when turgid (Figure 36.17a). This bowing outward increases the size of the pore between the guard cells. When...
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