Enigneering Vibration Help

msatrakkoic

msatrakkoic

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I know this will be a long shot but I really need the solutions to both sets of questions 5 and 6. If by any chance anyone knows how to solve them....

I need it by tomorrow morning.

Thanks guys,
 

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the second two are visible. I don't know why a) it uploads like that b)it doesn't let me upload a pdf over a certain size.

the link to the website opens a pdf so thats the only way i can upload it
 
Are you saying we should do your homework?
 
ahah well thanks guys...
I have the final tomorrow and someone said something like that might be on it. It's not homework.

I just wanted to see if there may be someone on here who can help, thats all.
 
msatrakkoic said:
ahah well thanks guys...
I have the final tomorrow and someone said something like that might be on it. It's not homework.

I just wanted to see if there may be someone on here who can help, thats all.
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Sorry, haven't touched that math since 1996. All I know is the second question involve
(1/2)mv²=(1/2)mv²

Amirite?? lol
 
msatrakkoic said:
ahah youre thinking of conservation of momentum. It's different. But good idea :cool:
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Lol
PM Caboose or Brian P. Say Mr Brian, please Sir, sorry to bother you but can you help me do my test?
 
I can't even read half that crap.

r=2*π√(μ/κ)
=2*π√(5000kg/10^6N/m)
=Vibration Frequency ῡ (That should be a ν but I don't know how to do overhang ν; technically a mathematical Greek nu (n) with over score)

ῡ=1/(2*π*c)√(μ/κ)
=1/2*π*c)√(5000kg/10^6N/m)
=cm^-1

k = ν×λ or λ = k/ν ν = k/λ
ν = frequency s^-1 (Hz); λ = wavelength in m
k = speed of light = 2.998×10^6 m s-1 or 3.00×10^6 m s-1
wave number = 1/λ = 8.83m .: λ = 1/8.83m

Now just punch in the numbers. Math is fun.
 
I think someone's gonna fail their test tomorrow
 
Weeks I spent studying vibration in school = 4
Minutes I have spent using that knowledge since graduation = 0

I don't remember it being too challenging at the time. Just plug the numbers into the right equations....
 
caboose56 said:
Weeks I spent studying vibration in school = 4
Minutes I have spent using that knowledge since graduation = 0

I don't remember it being too challenging at the time. Just plug the numbers into the right equations....
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When I was in college I knew I Was going into Biology, but here they were teaching me things like Projectiles (mechanics) & other crazy stuff. Kids today look at trigonometry & calculus as hard, at their age, I was pulling my hair out with even harder stuff.

My point? I haven't used that since the 90s
 
caboose56 said:
Weeks I spent studying vibration in school = 4
Minutes I have spent using that knowledge since graduation = 0
Click to expand...

About the same here. I recall that there were some formulas that we had to know how to use in order to pass an exam, which I have long since forgotten (probably intentionally). I don't do vibration analysis.
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