• 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. 1

    How was Chemistry P1/2

    According to the theory of relativity E=mc^2, mass will change for a change in energy, but for such a small change, the change in mass is negligible. Anyways it mentions clearly in my chemistry book that the mass of the products and reactants is the same.
  2. 1

    How was Chemistry P1/2

    You can't get hydrogen from fractional distillation of air. Air is made up of nitrogen, oxygen, noble gases, carbon dioxide and some water vapours, not hydrogen.
  3. 1

    Physics ATP; 24 hours passed

    Usually the marks for a question are divided like this: - 1 for the answer (10.041 I think ) -1 for the answer rounded correctly (10.0 in this case)
  4. 1

    Physics ATP; 24 hours passed

    The value for g was something like 10.041, but your answer is rounded off correctly.
  5. 1

    How was Chemistry P1/2

    Do you remember all the parts of the question.
  6. 1

    Physics ATP; 24 hours passed

    First of all, it's not a random number. Second even a random number is much better a username than misspelling douchebag.
  7. 1

    Physics ATP; 24 hours passed

    Your name says so much about you.
  8. 1

    Physics ATP; 24 hours passed

    I just said that....
  9. 1

    Physics ATP; 24 hours passed

    A clamp isn't for used for taking readings easily. It is used to prevent the thermometer from coming in contact with the walls of the beaker, since we need to measure the temperature of the water not the beaker.
  10. 1

    How was Chemistry P1/2

    Pretty good, not great though.
  11. 1

    Now lets discuss the physics ATP.

    To improve the experiment, use pendulums of different lenght and calculate their time periods. Then plot a graph of different values of 4pi^2l and T^2 and the gradient of the graph will give us g.
  12. 1

    Physics O levels complete discussion

    Just till you feel that you have the hang of it. All you need is basic knowledge of apparatus, the types of questions, and common sense. Go through a few exams and read the mark schemes. Soon you will feel that you understand the examiners requirement. Then you're ready.
  13. 1

    physics paper 1,2 ........can we discuus da papper nw?

    I did it too, i don't think it matters.
  14. 1

    physics paper 1,2 ........can we discuus da papper nw?

    The thermal energy is used in making or breaking the bonds ( depending on which change of state you're referring to), and thus there is no temperature change.
  15. 1

    physics paper 1,2 ........can we discuus da papper nw?

    In the question we got A was towards the center of the circle.
  16. 1

    physics paper 1,2 ........can we discuus da papper nw?

    In the example you showed me he's turning around a different corner. The question we got was a lateral inversion of that. But I'm sure you can see that the resultant force is towards the center of the circle
  17. 1

    physics paper 1,2 ........can we discuus da papper nw?

    vishal I don't remember all of it but F seems to be wrong. It was due to more thermal energy not windows. And in the radioactivity question, the question asked why a substance with a small half life was NOT used.
  18. 1

    physics paper 1,2 ........can we discuus da papper nw?

    When a body is moving in a circle, the resulting force and thus the resulting acceleration is towards the center of the circle.
  19. 1

    How'd your physics Papers go ?

    It wasn't a force, rather moment of a force. And the values were 0.18Nm and 0.08Nm.
  20. 1

    chemistry post your doubts here

    The answer was 1 and 4, zinc and copper. It's because a precipitate would only form in the solution if the metal x being placed in the solution displaces the metal already present in the solution. Since more reactive metals displace less reactive, copper and zinc were displaced. It would be...
Top