• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. Thought blocker

    AS Physics P1 MCQs Preparation Thread.

    9) Here Pi = Pf Pi = 2mu - mu = mu now check in all optons, and see where does Pi = Pf A C D has Pi =Pf now we are asked for Elastic collision, so A 17) Theory based answer. Read the chapter - Matters.
  2. Thought blocker

    <--------------------- [103406:Adeena Shamshir] ^_^

    <--------------------- [103406:Adeena Shamshir] ^_^
  3. Thought blocker

    Physics: Post your doubts here!

    v = (2gh)^1/2 HEIGHT IS 0.72 NOT 0.8! Measure from the base of the ball. Diameter is 0.08. We have to subtract that. Use 1/2mv^2 = initial KE to calculate mass. u = (2gh)^1/2 Again, height is 0.45-0.08 m. KE after impact = 1/2mu^2 = 0.39 J Answer is C
  4. Thought blocker

    Chemistry: Post your doubts here!

    You are :thumbsup:
  5. Thought blocker

    Physics: Post your doubts here!

    P = E / t ( E = 0.5 * m * v^2) P = ( 0.5 * m * v^2 )/ t Now as you know mass = density (ρ) * volume (V) P = ( 0.5 * ρ * V * v^2 ) / t Now you know Volume = Area (A) * Length (l) P = ( 0.5 * ρ * A * l * v^2 ) / t Now you know Velocity = l / t P = 0.5 * ρ * A * v^3 Now substitute the values : Keep...
  6. Thought blocker

    Chemistry: Post your doubts here!

    Easiest approach I would use is to do trial and error with the 4 options, which is fast after some practice. Since B is the answer, I'll use it as example 2P --> 2Q+ R 2.........0 .....0 ..... initial -2x ...... +2x .... +x ..change 2-2x..... 2x ..... x..... final Refer to the steps below if...
  7. Thought blocker

    yes ;) Khule am ;)

    yes ;) Khule am ;)
  8. Thought blocker

    Agreed!

    Agreed!
  9. Thought blocker

    Welcome! Copy Paste, as this all wasn't fitting in one comment, so Just posted one point in one...

    Welcome! Copy Paste, as this all wasn't fitting in one comment, so Just posted one point in one comment, so that it's easy to get it understand, or it can easily be grasped. I used commonsense. Good enough! Isn't it ?
  10. Thought blocker

    In short, The compounds in 1 and 2 are made from C3H7 free radicals. The compound in 3 is made...

    In short, The compounds in 1 and 2 are made from C3H7 free radicals. The compound in 3 is made from C2H5 and C4H9 free radicals.
  11. Thought blocker

    So we can have some combinations for the termination step. Option 1, formed by CH2CH2CH3 +...

    So we can have some combinations for the termination step. Option 1, formed by CH2CH2CH3 + CH3CHCH3 Option 2, formed by CH3CHCH3 + CH3CHCH3
  12. Thought blocker

    For propane, two possible radicals can be formed. The unpaired electron could be on the 1st (...

    For propane, two possible radicals can be formed. The unpaired electron could be on the 1st ( CH2CH2CH3) or 2nd carbon (CH3CHCH3)
  13. Thought blocker

    From a quick look , it seem that ans is B (1 and 2 is correct)? It might be faster if you can...

    From a quick look , it seem that ans is B (1 and 2 is correct)? It might be faster if you can post the corresponding answers for your selected questions.
  14. Thought blocker

    Be back in 2 mins. :P

    Be back in 2 mins. :P
  15. Thought blocker

    Physics: Post your doubts here!

    Thnks to zaqy ;) okay so we have a wire and it is being stretched. By stretching a wire you only change its length or area you can't change the volume (to change volume you should either remove a part of it or add more copper to it) and so Volume of stretched=volume of unstretched A copper wire...
  16. Thought blocker

    :P ty

    :P ty
  17. Thought blocker

    :)

    :)
  18. Thought blocker

    Lemme change :P

    Lemme change :P
  19. Thought blocker

    Best of luck :)

    Best of luck :)
  20. Thought blocker

    hmm :P

    hmm :P
Top