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muskan

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Everything posted by muskan

  1. muskan

    time

    what's exactly is time? did it started with the big bang or it existed even earlier? we measure time, but don't know what exactly it is.
  2. muskan

    Carbon

    Why carbon doesn't share all it's four electrons with one carbon?
  3. muskan

    Triangle

    this question can be solved using advanced concepts of mathematics. but i have not learnt them yet
  4. muskan

    Triangle

    Solve it
  5. muskan

    motion

    He takes 55 steps forward and 30 steps backwards
  6. Time taken by sunlight to pass through a window of thickness 4 mm whose refractive index 1.5 is
  7. If a car covers 1/3 of the distance at 20 km/h and rest at 60 km/h, then what is its average speed?
  8. muskan

    motion

    10 i think the answer should be 25 seconds. but the options don't have it.
  9. muskan

    current

    electrical
  10. How can we factorize cubic polynomials? e.g. y3+ 2y2+ y+ 1
  11. muskan

    current

    Please explain me the exact mechanism of current flow.
  12. What is Kekule's law?
  13. muskan

    current

    Give reasons for in which direction will the current flow.
  14. muskan

    Vectors

    how can we eliminate f1? this is what i have done
  15. muskan

    Vectors

    6 th please!
  16. muskan

    vectors

    I know only a little about components of vectors. I have tried to solve it. But I have failed. Please help me in 16 to 19 questions.
  17. force b/w first and second particle is 7.2 *10-8. the force b/w second and third is 1.944*10-8 . but there is no relation.
  18. first we need to convert ice to water. then, can we use the first law of thermodynamics here?
  19. A vessel of mass 80 g(S. H. C. = 0.8 J/g) contains 250 g of water at 35°C. Calculate the amount of ice at 0°C, which must be added to it, so that the final temperature is 5°C. ( Latent heat of ice = 340 J/g).
  20. muskan

    Sucrose

    Two Glucose combine to form one Sucrose. One atom of oxygen and two atoms of hydrogen get removed. What is the change in the bonds in Glucose? Please explain by giving respective structures.
  21. muskan

    Blood

    What is the total volume of blood inside your body?
  22. muskan

    circles

    PEDF is not a parallelogram.
  23. What is the use of spiral root method in Archemedes principle?
  24. muskan

    Circles

    don't consider the markings in the figure they are not correct. ABCD is a ||gm.
  25. muskan

    Circles

    Give me some hints to solve it please.
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