Recent content by atom jana

  1. atom jana

    How many did you get right in this test?

    That is why I did not call it an IQ test in the title.:smile:
  2. atom jana

    How many did you get right in this test?

    http://free.ultimaiq.net/numerus_basic.htm
  3. atom jana

    Logic puzzle : Smallest number of prisoners required?

    You are the ruler of a medieval empire and you are about to have a celebration tomorrow. The celebration is the most important party you have ever hosted. You've got 1000 bottles of wine you were planning to open for the celebration, but you find out that one of them is poisoned. The poison...
  4. atom jana

    How to calculate the potential energy of a spring?

    I really suck at physics, but I think that the forces exerted by the two springs should cancel each other out. So, the only thing which comes into play is gravitational potential energy. Someone please correct me if I'm wrong. Edit: I think have taken only the mass m into account.
  5. atom jana

    Can someone help me with these 2 Euclidean geometry questions?

    Yes, I see you had already mentioned it.
  6. atom jana

    Can someone help me with these 2 Euclidean geometry questions?

    For the first problem, the theorem which states that equal arcs subtend equal angles on a circle is applicable.
  7. atom jana

    Loop-the-loop ball Physics question

    The initial kinetic energy as well as the gravitational potential energy should be taken into account.
  8. atom jana

    Why does changing the frequency of a wave affect the energy?

    Higher the frequency of the wave, more is the energy carried by it. A wave with higher frequency would have more energy, and thus more energy will be transferred to the electrons.
  9. atom jana

    [Mechanics] Tension in bungee jumping

    This is the key statement : The woman jumps from a bridge 24 m above the surface of water.
  10. atom jana

    B IF north pole becomes the south pole....

    If we are talking about the magnetic poles, as far as I know, nothing would happen since both the poles are equally powerful, and they are virtually indistinguishable from each other. So, if the poles were interchanged, there would no effect on Earth.
  11. atom jana

    B Does "nothing" have a meaning in physics?

    To my knowledge, there's no rigorous definition of "nothing" in physics. Doesn't mean nothing is nothing, though...
  12. atom jana

    Velocity along a frictionless surface

    Like others have, the speed of the body from B to C will remain constant since there's no force acting on it due to gravity.
  13. atom jana

    Newton's laws -- Block sliding on a Prism

    I am not sure, but here's my two cents: The angle between the line of acceleration of the prism and the line of acceleration of the block is equal to 90+theta degrees. Use vectors to work out the acceleration of the block with respect to the prism.
  14. atom jana

    B Is an Insect Really Flying at 150 km/hr? Exploring Motion in a Moving Car

    With respect to a stationary observer, the insect is moving at a speed of 150 km/hr.
  15. atom jana

    Can the speed of light change?

    Light travels in vacuum with a constant speed which is equal to 299, 792, 458 m/s. It slows down when it travels through an optically denser medium such as glass, water, etc.
Back
Top