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  1. mustafa5255

    Physics: Post your doubts here!

    can anyone explain Q11 (b) (i)? I read an explanation somehwere and it said that the two forces have to be subtracted because they are opposite in direction. Why subtract when both forces are in same direction? Shouldn't we add? Both springs will exert a force to the left to bring it to the...
  2. mustafa5255

    Physics: Post your doubts here!

    Can anyone explain why (c) (iii) is 180? Shouldn't the phase difference be slightly less than 180?
  3. mustafa5255

    Chemistry: Post your doubts here!

    Help please!!!
  4. mustafa5255

    Chemistry: Post your doubts here!

    Can you help with this please?
  5. mustafa5255

    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 strength 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, why isn't it B? :O HELP
  6. mustafa5255

    Chemistry: Post your doubts here!

    Let me know if this helped.
  7. mustafa5255

    Chemistry: Post your doubts here!

    I'm not that good in chemistry, but from my understanding it cant be a,b, or d because these three properties are also present in NaCl and MgO and the question says that CsCl has a different structure than these two, so the only distinct property that CsCl has is the radii ratio.
  8. mustafa5255

    Chemistry: Post your doubts here!

    isotopes can have more neutrons. Wouldn't that mean they'd have bigger radii?
  9. mustafa5255

    Chemistry: Post your doubts here!

    Can you help with 46.? The answer is 1 only.
  10. mustafa5255

    Chemistry: Post your doubts here!

    Omg!! Thank you so muchhh!!!
  11. mustafa5255

    Chemistry: Post your doubts here!

  12. mustafa5255

    Chemistry: Post your doubts here!

    YESSSS, but how?
  13. mustafa5255

    Chemistry: Post your doubts here!

    Please help!
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