Hovering over the pit of Hell, the devil observes that as a student falls past (with terminal velocity) the frequency of his scream decreases from f' to f''. (a) Find the speed of descent of the student. (b) The student's scream generates beats when it is mixed with its echo from the bottom of the pit. Find the number of beats per second heard by the student. (c) Find the number of beats per second heard by the devil after the student has passed by.

Question

ell · Answer

Between A or B, but I think it's A.
Hope this helps!(:

ell · Answer

haha ^^ but it's not:P

anonymous · Answer

what do u mean by A or B? its part a, part b and part c

anonymous · Answer

well, i dont think there is wind

e.cociuba · Answer

This is a weird question. I mean it's almost like mixed with religion doings and physics.

ell · Answer

oh! i was confused! sorry! i thought it was a question, haha!

e.cociuba · Answer

"Hovering over the pit of Hell, the devil observes that as a student falls past..." Tht's terrible!

ell · Answer

What I thought! I don't understand what this is...

e.cociuba · Answer

Ya usually you wouldn't see this kind of question asked in school. The teachers could get in trouble.

ell · Answer

That is true^^ unless they want to loose their job...

e.cociuba · Answer

Well I guess they do...

anonymous · Answer

i was able to get a part v = vs (f'-f'')/(f'+f'')  where vs is the sound of speed