  # King E

Senior Members

42

## Everything posted by King E

1. Why doesn’t that happen by conduction, when the molecules below vibrate upon heating and collide with each other they transfer energy all the way through other molecules to the surface molecules?
2. I heard, molecules only at the surface of the liquid evaporate. But do the molecules below the surface of the liquid evaporate? Suppose we heat a container containing a liquid from the bottom. So molecules at the bottom of the container will have higher kinetic energy than the molecules on the surface. How will the molecules on the bottom escape as vapours?
3. If all the molecules at the same height in a container feel the same pressure then how does it remain true if the shape of the container is changed? Where are the vertical reaction vectors coming from on the right side, given that the container is a single rigid body and is thus not being pushed down onto the liquid molecules by gravity?
4. So “The error which occurs in a measuring instrument due to non-leveling of scales on zero point is known as zero error”?
5. Is this the correct definition of zero error? The systematic error in a measuring instrument due to non-uniform or wrongly marked graduation due to which a measurement may be less or greater than actual measurement is called zero error of the measuring instrument.
6. ## Soft question. What are the markings on a standard metre rule.

Some are marked in inches as well. Are they standard as well?
7. ## Soft question. What are the markings on a standard metre rule.

In other words what is the scale of Standard Metre Rule?
8. Yes it helped and I got my answer.
9. Yes because you find faults in the question whenever your answer doesn't help.
10. I know that but they don't answer my question.
11. In case of right angled triangles, C^2 = A^2 +B^2 - 2AB cos(Ψ) is shortened to C^2 = A^2 +B^2 because the cosine of the angle "Ψ" which is 90° is equal to 0. But how is its cosine equal to 0.
12. ## Think of a body which is at rest but not in equilibrium. Give explanation as well as figure/diagram.

So the object passes through the rest but isn’t continuously at rest because of the force of gravity. This obeys Newton’s law doesn’t it?
13. ## Think of a body which is at rest but not in equilibrium. Give explanation as well as figure/diagram.

Yeah a graph could help! by figure, I mean graph
14. ## Think of a body which is at rest but not in equilibrium. Give explanation as well as figure/diagram.

Yes. How is it at rest if a force is acting on it?
15. ## Think of a body which is at rest but not in equilibrium. Give explanation as well as figure/diagram.

When a ball is thrown upward it becomes at rest at maximum height, at this it is not in equilibrium although it is at rest. It is not at equilibrium because force of gravity is acting on it? Still I cannot find good explanation from exam point of view.I also cannot find the figure/diagram.
16. ## Does it make sense to say that something is almost infinite? If yes, then why?

Can you suggest a video or an article on dimensions(geometry) ?
17. ## Does it make sense to say that something is almost infinite? If yes, then why?

Thanks for guidance. 🙂
18. ## Does it make sense to say that something is almost infinite? If yes, then why?

So can I say ''infinite pieces'' of vertical lines instead of ''almost infinite pieces''?
19. ## Does it make sense to say that something is almost infinite? If yes, then why?

1:23
20. ## Does it make sense to say that something is almost infinite? If yes, then why?

I remember hearing someone say "almost infinite" in this video. As someone who hasn't studied very much math, "almost infinite" sounds like nonsense. Either something ends or it doesn't, there really isn't a spectrum of unending-ness. In this video he says that ''almost infinite'' pieces of verticle lines are placed along X length. Why not infinit?
21. what do you mean by considerable (infinite) variation?
22. For example, Consider two shapes; a circle and rectangle. Both these shapes have same area but the perimeter of circle is less than that of rectangle. Why?
23. The quantum entanglement and delayed choice quantum eraser variation to the double slit experiment has given very strange results. So if a particle is detected then the pattern is changed. Does the detected particle communicate with its entangled pair in the past? or there is another explanation to it?
24. Fermions are weird in that they distinguish left and right also. What do you mean by that?
25. Therefore I can say that, ''Quantum Particles are weird. They only work in one way, 'their way'.
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