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  1. A

    Chemistry p52!

    log[(a-x)/moldm^-3]
  2. A

    Physics: Post your doubts here!

    v=(a/a)v v=((a/(dv/dt))(ds/dt) v=(a)(ds/dv) ∫v dv = ∫ a ds use limits: (u and v) and (0 and s) you will get the answer.. 
  3. A

    Chemistry practical 34 oct/nov important

    The question asked to calculate an appropriate mean, not just a mean. I think that outliers should therefore be considered.
  4. A

    how was M1 42

    sorry I did not notice
  5. A

    how was M1 42

    Max speed was not 6.4 ms-1. It was actually max velocity which was 6.4 ms-1. The answer was around 25. (velocity was -25 something) :)
  6. A

    how was M1 42

    You missed (1-m)a for B. you wrote ma instead. Answer is 4.8N.
  7. A

    Physics: Post your doubts here!

    The body would not fall towards the centre but move off along a tangential path
  8. A

    Physics: Post your doubts here!

    amplitude of wave A = 3 (maximum disp. from first graph) amplitude of wave B=2 but phase difference between A and B is π radians. It is said in the question that the waves are at a common point (point P) therefore, from principle of superposition resultant amplitude = amplitude of A -...
  9. A

    Physics: Post your doubts here!

    find resultant amplitude and use relationship intensity is proportional to amplitude^2
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