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  1. H

    Physics p22

    bt u only tell me method and i also dont rememba anser...mayb i too messed it up
  2. H

    Physics p22

    well cn u tell me how u calculated acceleration......
  3. H

    Physics p22

    bt its initial acceleration will be higher....now i got it...see a=6piRv/ d*4/3pi r^3....so u decrease radius u decreasing the denominator so.....u increasing a .......i think this shud be anser though i drew it initially higher bt dont knw wat asked me to erase that and cause it overlap the...
  4. H

    Physics p22

    no...man see...u decreased the radius....so u decreased the volume...so mass decreased so its lighter....lighter means it ll reach terminal velocity earlier...cn u remind me of that F equation
  5. H

    p34 chem details???

    has anybody got them
  6. H

    Physics p22

    and what abt the sketch graph.....guyx...i did lyke initailly it was overlapping and....its final velocity reached was less....than for drwan case....bt i guess it should have been all the way below the original graph so guess m loosing 1 mark frm here
  7. H

    Physics p22

    y will u want to change diameter since u cn get a range of stress values by using different weights only....and using different diameter will not be feasible i guess
  8. H

    Physics p22

    this is for last part of that queestion....and taking measurements....i wrote that pulley wla experiment........mentioned in CHRIS MEE book
  9. H

    Physics p22

    k ...did samebody wrote on the need to take a lot of readings of Force and extension...calculationg stress and strain...drawing line of best fit..stress against strain graph...determining its gradient.......this is i guess the best way to determine young modulus.....cos only one set of reading...
  10. H

    Guys hw does cambridge award A* for A level???????

    ya u cn ov course get a star lyk dt
  11. H

    Guys hw does cambridge award A* for A level???????

    e.g A is on 42 and B ON 34....THEN A star on(42-34)+42=50..bt u dont get it in AS
  12. H

    High grade thresholds in ph6 p22

    man b4 exams....i had done them once....so i had time
  13. H

    Physics p22

    yea ,,,,so how did it go
  14. H

    physics paper 1

    9 its.....A first apply principle of conservation of momentum....and then check if relative speed of approach+relative speed of separation 10...its c hmm....first use Ft to find change in momentum..it ll be -ve as force is in opp. direction...find new momentum.....u shud get it 60....use p=mv to...
  15. H

    i wrote more than the given space

    guys u cn only say how u find bt not leak its contents....but surely its a BAD rule
  16. H

    High grade thresholds in ph6 p22

    well my paper went absolutely cracking apart from a silly arithimetic error.....bt to tell the truth it was more demanding and conceptual than other pprs bt GT 40 i guess...m sure ppl would have written largely inaccurate details in experiment.....though i had solved a similar question in OCR...
  17. H

    grade thresholds

    i think 42....
  18. H

    High grade thresholds in ph6 p22

    hhmmm...it cn never be 48......cos previous year ppr was easier than this....and gt in that was 35
  19. H

    Is Osama bin Laden alive?? :)

    http://www.youtube.com/watch?v=FrkUNQH6GfQ
  20. H

    Lionel Messi vs Cristiano Ronaldo

    cristiano ronaldoooooooooo.......he broke la liga goal scoring record recentlyyyyyy
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