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Search results

  1. J

    Physics: Post your doubts here!

    can I get some help again. thank you so much
  2. J

    Physics: Post your doubts here!

    Could you guys help me plz?
  3. J

    Physics: Post your doubts here!

    Nope, the answer is A, 6
  4. J

    Physics: Post your doubts here!

    10 The diagram shows a barrel suspended from a frictionless pulley on a building. The rope supporting the barrel goes over the pulley and is secured to a stake at the bottom of the building. A man stands close to the stake. The bottom of the barrel is 18 m above the man’s head. The mass of the...
  5. J

    Physics: Post your doubts here!

    10 The diagram shows a barrel suspended from a frictionless pulley on a building. The rope supporting the barrel goes over the pulley and is secured to a stake at the bottom of the building. A man stands close to the stake. The bottom of the barrel is 18 m above the man’s head. The mass of the...
  6. J

    Physics: Post your doubts here!

    Nah, that's all information I got. 19 is correct, how did you figure it out? P.S Dont worry i got the answer.
  7. J

    Physics: Post your doubts here!

    Physics Help plz A car travelling with speed 28 m s–1 leaves a motorway on an exit road. The end of the exit road is 22 m higher than the motorway. If only the force of gravity is considered, what will be the speed of the car at the end of the exit road? A 7.3 m s–1 B 19 m s–1 C 21 m s–1 D 24...
  8. J

    Physics 23 Nov 2013?

    wat u got?
  9. J

    Physics 23 Nov 2013?

    Wait a minute, haha I think i got 1 for the answer which seems to be definitely wrong as i looked at it now, damn.
  10. J

    Chemistry: Post your doubts here!

    Just wondering, then why does it form a cyclic compound rather than straight line ester?
  11. J

    Physics 23 Nov 2013?

    What I did in the exam was using energy conservation law. When h is halved, gravitational potential energy is halved. Therefore, since I knew total amount of energy by calculating kinetic energy at the first part of the question, I just subtracted the gravitational potential energy from the...
  12. J

    Physics 23 Nov 2013?

    Wasn't it a ratio of potential energy/kinetic energy when a ball is at maximum height/2
  13. J

    Chemistry: Post your doubts here!

    Chemistry help !, I couldn't find information related to that dicarboxylic acid reacts with little c.H2SO4 to give a cyclic compound, in neither AS level nor A2 Level. It is such a totally weird question. Question 5 (d) (i) Could you guys plz help me?
  14. J

    Physics 23 Nov 2013?

    i got 1/2 as well !
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