Recent content by manogyana25

  1. manogyana25

    Quadratic equations - problems

    A train travels a distance of 480km at a uniform speed. If the speed had been 8km/h less, then it would have taken 3 hours more to cover the same distance. Find the speed of the train. Represent this situation in the form of quadratic equation. So I have been trying this but couldn't find...
  2. manogyana25

    Average kinetic energy of the molecules in a cold liquid less?

    Why is the average kinetic energy of the molecules a cold liquid less? As the temperature of a liquid decreases, the average kinetic energy of its molecules reduce. What is the reason behind this?
  3. manogyana25

    Rutherford's Alpha particles experiment

    According to JJ Thomson's atomic model, Rutherford expected deflections of alpha particles through small angles. I'm unable to understand why he had expected "small angles". Can someone please explain.
  4. manogyana25

    Is force relative like motion?

    When a book which is on table is pushed, it moves in the direction we push and the work done by us is positive and the energy gained by the body is also positive. But consider the frictional force. The work done by it is negative. So in one incident force is both positive and negative depending...
  5. manogyana25

    Can energy transferred from one body to the other be of same form?

    Suppose some energy, say light energy transfers from one body to another .. Then will the light energy transferred to the second body also be in the form of light energy? I mean are there any chances that the energy transferred between two different bodies be of same kind of energy? If yes...
  6. manogyana25

    Why doesn't x^2+1 has no zeroes

    Yes yes I got it thanks!
  7. manogyana25

    Why doesn't x^2+1 has no zeroes

    Hey but its not (x^2-1)^2 ... Its x^2 -1 right?? Then how can it be (x+1)(x-1)
  8. manogyana25

    Why doesn't x^2+1 has no zeroes

    Oh yes, I totally missed this point... I got it now.. Thank you Mark44.. :)
  9. manogyana25

    Why doesn't x^2+1 has no zeroes

    Noooo... I've not taken classes regarding that topic yet.. If you really want to say that to me.. Then probably you must spend all your time here... ;)
  10. manogyana25

    Why doesn't x^2+1 has no zeroes

    What is D
  11. manogyana25

    Why doesn't x^2+1 has no zeroes

    Sorry.. Whatever the curve, parabola and everything you said, I didn't understand. I haven't took those classes yet. Can you please name that chapter for me??
  12. manogyana25

    Why doesn't x^2+1 has no zeroes

    X^2-1=0 X^2=1 X=√1 X=1 Hey, I have another thought regarding this.. X^2+1=0 X^2=-1 X=√-1 which is an imaginary number.. So it can never be zero..
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