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  1. Suchal Riaz

    Physics: Post your doubts here!

    i have a dp of sheldon. so i must have difficulty understanding sarcasm. it was sacrasm. bazinga! :P
  2. Suchal Riaz

    Physics: Post your doubts here!

    you are doing coursebook questions? because past papers were too easy :eek:
  3. Suchal Riaz

    Physics: Post your doubts here!

    well the graph is not there for decoration. i chose a random value of F and it's corresponding value of x. and converted it into meters
  4. Suchal Riaz

    Physics: Post your doubts here!

    I am embarrassed by my hand writing and drawing skills. But you must have to bear it.
  5. Suchal Riaz

    Physics: Post your doubts here!

    Thought blocker
  6. Suchal Riaz

    Physics: Post your doubts here!

    this community works by contribution of people like you and me. i would be glad if you would help others on this thread or on chemistry&math thread. :)
  7. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib q30 the difference between two maximum five 1/2 λ so λ=0.66m v=f λ so f=v/ λ so f=500Hz, f=1/T, so T=1/f so T=2ms each block is of 0.5 ms so the wave has a period of 4 blocks. so answer is B
  8. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib v=s/t so t=s/v s=3 λ, v=c t=3 λ /c
  9. Suchal Riaz

    Physics: Post your doubts here!

    no problem. i was just telling you that it was in o level as well. if you want the complete reason see the derivation of rho g h which is indeed in our syllabus sorry for very rough drawing. it's a pain to draw in paint:
  10. Suchal Riaz

    Physics: Post your doubts here!

    it's h which means vertical distance. we've done this at o levels. here is an example that pressure is affected by height alone.
  11. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib Q25 as wire is of same material the E is same E = stress/strain = (F*original length)/(A*extension) extension = (F/EA )*original length so extension is directly proportional of length and inversely proportional to A area is squared of diameter(multiply by 1/4 pi but thats a constant) so...
  12. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib Q23 pressure of water = rho g h = 0.5X10^5 pressure of gas = pressure at point below 5 m of water = pressure of water + atmospheric pressure = 0.5 + 1.0 X10^5 = 1.5X10^5 Pa
  13. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib would you give me enough time. thats the second most rude thing i have witnessed.
  14. Suchal Riaz

    Physics: Post your doubts here!

    Tulaib power=IV = 32*230=7360 J/S mass/second * g * height = weight*height/second=power so 200*9.81*8=15696 efficiency = 7360/15696=0.469=46.9%~47%
  15. Suchal Riaz

    Physics: Post your doubts here!

  16. Suchal Riaz

    Physics: Post your doubts here!

    thats the most rude thing i see over here. atleast post the link of the paper when you ask question. It's written on the first page in bold that post the link.
  17. Suchal Riaz

    lol :D sorry i destroyed the joke

    lol :D sorry i destroyed the joke
  18. Suchal Riaz

    i still don't understand what you meant. :(

    i still don't understand what you meant. :(
  19. Suchal Riaz

    what is "paw"

    what is "paw"
  20. Suchal Riaz

    SOLVED HARDEST questions for QUICK last day REVISION

    summer 2010 paper 12 qp34
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