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Recent content by mynameisjh

  1. M

    Physics: Post your doubts here!

    hmmmm, alright :/ thanks alot!!
  2. M

    Physics: Post your doubts here!

    I know but why cant it be B) F/Q???
  3. M

    Physics: Post your doubts here!

    I know but why cant it be B) F/Q???
  4. M

    Physics: Post your doubts here!

    I know but why cant it be B) F/Q???
  5. M

    Physics: Post your doubts here!

    A small charge q is placed in the electric field of a large charge Q. Both charges experience a force F. What is the electric field strenght of the charge Q at the position of the charge q? A F/Qq B F/Q C FqQ D F/q Answer is D but whyyy?????
  6. M

    Physics: Post your doubts here!

    Guys need help with this question S13 9702 13 19) A model is made of the crane, its load and the cable supporting the load. The material used for each part of the model is the same as that in the full-size crane, cable and load. The model is one tenth full-size in all linear dimensions. What...
  7. M

    Physics: Post your doubts here!

    10 A stationary nucleus has nucleon number A. The nucleus decays by emitting a proton with speed v to form a new nucleus with speed u. The new nucleus and the proton move away from one another in opposite directions. Which equation gives v in terms of A and u? A v = (A/4 - 1)u B v = (A – 1)u...
  8. M

    A level Statistics doubt??Post your doubts here!

    thank you very much!!
  9. M

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w10_qp_63.pdf please help me with 6(iii), permutation, stuck with it for an hr already still cant seem to solve it
  10. M

    A level Biology: Post your doubts here!

    thank you!!!
  11. M

    A level Biology: Post your doubts here!

    Studies on the energy efficiency of raising catfish in ponds have shown that only 15-20% of the energy taken in by the catfish population in their food is used to increase their total biomass. (i) Explain why only some of the energy taken in by the catfish is used to increase biomass. (ii) In...
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