Jilan
Senior Member

126 Likes

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1. 
   mayflow liked post by Jilan On thread : "Regaining momentum takes three times as much energy as sustaining momentum" - explanation please!

   You pedal a bike but you peddle a myth. I got top grades in English. :cool:

   Liked On: 10-10-2014, 10:53 PM

2. 
   mayflow liked post by Jilan On thread : "Regaining momentum takes three times as much energy as sustaining momentum" - explanation please!

   The impulse is generally the change in momentum.

   Liked On: 10-10-2014, 09:19 PM

3. 
   pikpobedy liked post by Jilan On thread : What is velocity of the 2 kg block immediately before the collision?

   Go for it Gotcha Girl, you impress no one. LOL!

   Liked On: 10-03-2014, 12:17 AM

4. 
   Scheuerf liked post by Jilan On thread : Time Dilation and Length Contraction From Different Reference Frames

   I would think that persons B and C will agree with each other on the time and the distance. Person A will disagree.

   Liked On: 09-30-2014, 12:01 AM

5. 
   Maria liked post by Jilan On thread : How long will 1m of space be next year?

   I agree, it's best to save the brain cells for old age, we might need them :cool: but I just can't resist....:D I'm coming up with 7.7 x 10^-13 m/year/m Oh dear, it's even smaller! I don't think...

   Liked On: 09-29-2014, 10:34 AM

6. 
   Maria liked post by Jilan On thread : volumetric efficiency of 4 cylinder 4 stroke engine calculation advice

   So we are comparing the amount of air used with the amount of air drawn into the engine. We are doing to need to convert the volume of air to a mass. Can you calculate the density of air so we can do...

   Liked On: 09-29-2014, 10:33 AM

7. 
   Maria liked post by Jilan On thread : Why is a electric field induced by a varying magnetic field, non-conservative?

   With static charges the electric field can be described as the gradient of a scalar. It is therefore irrotational. The work done in moving a charge through the field is independent of the path taken...

   Liked On: 09-29-2014, 10:32 AM

8. 
   Scheuerf liked post by Jilan On thread : Finger Over Straw Trick

   Yes it's do do with atmospheric pressure. You wouldn't be able to do on in the moon. This actually is how barometers measure the atmospheric pressure. Barometer - Wikipedia, the free encyclopedia...

   Liked On: 09-27-2014, 11:55 PM

9. 
   pikpobedy liked post by Jilan On thread : Why is a electric field induced by a varying magnetic field, non-conservative?

   With static charges the electric field can be described as the gradient of a scalar. It is therefore irrotational. The work done in moving a charge through the field is independent of the path taken...

   Liked On: 09-27-2014, 07:14 PM

10. 
    Maria liked post by Jilan On thread : conductor and magnet problem special relativity

    You don't. It is B tan@cos@ in one frame and B sin@ in the other (which are of course identical). The cos@ term comes from taking the component of the flux perpendicular to the plane of the loop and...

    Liked On: 09-27-2014, 07:44 AM

11. 
    Maria liked post by Jilan On thread : Finger Over Straw Trick

    It might be useful to imagine what happens when you remove your finger. With a drinking straw the liquid will run out, but with a coffee stirrer it might stay in.

    Liked On: 09-27-2014, 07:42 AM

12. 
    Boing3000 liked post by Jilan On thread : Carbon based Life vs. Plasma based Life.

    I don't won't to get of topic here, but chaos is quite different to randomness. The first is deterministic the second one isn't.

    Liked On: 09-26-2014, 07:02 PM

13. 
    Maria liked post by Jilan On thread : Carbon based Life vs. Plasma based Life.

    I don't won't to get of topic here, but chaos is quite different to randomness. The first is deterministic the second one isn't.

    Liked On: 09-26-2014, 05:37 PM

14. 
    Maria liked post by Jilan On thread : determining the energy deposited in a 1mm layer of Al at a depth of 5cm

    Good, let's work in stages. First of all Are you able to calculate the energy that is not reflected/scattered using the attenuation coefficient?

    Liked On: 09-26-2014, 05:34 PM

15. 
    Maria liked post by Jilan On thread : determining the energy deposited in a 1mm layer of Al at a depth of 5cm

    You are right, the energy will be the intensity x time. But let's just work per second for now. So if the net intensity absorbed = the inflow - the energy dissipated, we need to find the energy...

    Liked On: 09-26-2014, 05:34 PM

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