Recent content by BareFootKing

Sorry, the" ¬" of "y¬0" was not suppose to be there. I was typing my post on word and copied and pasted it to the forum. I meant I thought that y' = xocos(wt) + yosin(wt). Why is there a minus R term for y' and not for x'. I understand if it had the R term and we squared y' and x' and add them...

Homework Statement http://s22.postimg.org/5vp0p2aox/Untitled.png Homework Equations The Attempt at a Solution Here is the solution I understand everything that must be done after one find the correct transformations for the two coordinates, but I don't understand why the...

Thank you very much for your response.

Homework Statement In one arm of a Michelson interferometer the light passes through a glass tube of length L which contains air. The air is pumped slowly out of the tube and during this process it is found that the intensity of light reaching the eye has increased and decreased n times...

Why can we neglect spontaneous emission?

I am having trouble understand why is true I would think that the rate in which N2 is changing is the rate of stimulated emission and spontanous emission together. Why is it just the rate of stimulated emission It is in the mathematical model section...

Thank you for your help. I will look at some more texts/online material . Thanks for your help!

Thank you for helping me so far. I just have one more question now that you told me that. Why exactly would they calculate the time delay in that way. Where t= t1-t2 where t1 is the time to travel up and down leg 1 and t2 is the time to travel through leg 2 And then rotate the apparatus so...

Thank you for the explanation, but I have one more question. I prob don't have a deep understanding of the experiment which is probably why I am having trouble understanding the part where they rotate the apparatus. Why to the time delays have different signs? What does a negative time delay...

but why is it x- (-x). Where does the x represent? I thought we were considering time not displacement.

I understand that fact when we are talking about displacement, but when we are talking about time delay why wouldn't the difference be 0. If the time delays are the same in both orientations than wouldn't the difference between the time delays of the two orientations be 0?

I am having difficulty understanding why when the apparatus in the figure on page 448 (http://web.physics.ucsb.edu/~phys22/K%20and%20K%20Sections/KK_Chapter11.pdf ) is rotated 90 degrees the time delay is twice what it was before. When I think about I immediately think it would be the same since...

Homework Statement It isn't really a homework problem rather http://spiff.rit.edu/classes/phys200/lectures/mm_results/mm_results.html If you search " After they rotated the device by 90 degrees, the arm which was sideways to the ether would now be going with-and-against the wind...

I thought the speed of sound would a vary but be a unique constant for different mediums. constant in air, water, rope etc But wouldn't I alter the propagation speed of the pulse by altering the speed in which I displace my end of the rope.

Thank you very much bossman27!