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Lab Report 5

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Lab Report 5 - Page 2 Empty Question 32

Post  stuck Wed Oct 22, 2008 5:12 am

did anyone get deltav^2/v^2?

stuck
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

Post  num 9 Wed Oct 22, 2008 9:27 am

i am dividing ws by t prime and still getting v' wrong...whats wrong hereee

num 9
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

Post  Guesto Wed Oct 22, 2008 12:05 pm

I keep getting some rather large numbers for question 38 and 40. When I enter them, maple TA says the numbers are incorrect.

This is what I did:

KEi-KEi'=X

Then
X/sqrt(DeltaKE^2+DeltaKEi^2)= 20 something
What the hell is going on here?????? Why cant I get the answer, what am I doing wrong?!?!?!?!?

Guesto
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

Post  yeahhhh Wed Oct 22, 2008 12:16 pm

how do i find the ratios...

also is deltavi/vi the same as delta viprime/viprime?

yeahhhh
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Lab Report 5 - Page 2 Empty question1?

Post  guestooo Wed Oct 22, 2008 1:13 pm

DId anyone get number 1 right? ive tried it a few times and plugged numbers into both equations to figure it out and i cant manage to get it right..

guestooo
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Lab Report 5 - Page 2 Empty ratio questions

Post  helpmepl Wed Oct 22, 2008 4:09 pm

..could anyone point me in the right direction as to how to get the rations in questions 38 & 40..

38:Use the values of question "Lab 5 Part IV Total Kinetic Energies and Errors in Part II (Elastic)" and calculate the ratio of the magnitude of the difference of the Total Kinetic Energies before and after the elastic collision, divided by the absolute error of the difference

40: Use the values of question "Lab 5 Part IV Inelastic Collisions Table 8b Kinetic Energies" and calculate the difference of the Total Kinetic Energy before minus after the inelastic collision of Part III. Divide this by the error of the difference

also.. im having a problem with parts of questions 32 and 34.. for deltavi^2/vi^2... how do we get these numbers? THANKS!

helpmepl
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Lab Report 5 - Page 2 Empty 32

Post  32 Wed Oct 22, 2008 4:19 pm

does anyone know how to compute deltav_i^2/v_i^2 ?i keep getting it wrong

32
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Lab Report 5 - Page 2 Empty 6

Post  guest101 Wed Oct 22, 2008 4:35 pm

Seriously... does anyone know the answer to 6.

guest101
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Lab Report 5 - Page 2 Empty 6

Post  guest101 Wed Oct 22, 2008 4:37 pm

nvm got it - for anyone stuck on it the answer is:

sqrt((Deltam/m)^2+(Deltav/v)^2)*p

guest101
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Lab Report 5 - Page 2 Empty question 11

Post  me Wed Oct 22, 2008 5:19 pm

hey can someone show me how to do number 11?????? i don't think i even understand the question that is how lost i am.

me
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Lab Report 5 - Page 2 Empty Question 24

Post  troubled Wed Oct 22, 2008 6:35 pm

damn...

i was able to get the first 3 parts in Question 24,
but having trouble getting [b]deltap'.
anyone please?

troubled
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Lab Report 5 - Page 2 Empty question #11

Post  ih8lab Wed Oct 22, 2008 7:57 pm

sqrt((Deltapprime_b)^2+(Deltapprime_s)^2)

ih8lab
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Lab Report 5 - Page 2 Empty question 12

Post  ih8lab Wed Oct 22, 2008 8:01 pm

P=p_1
P'=pprime_2-pprime_1

ih8lab
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

Post  jsyz Wed Oct 22, 2008 10:02 pm

question 24
any one have any idea for the Delta p'
i did (deltaw/w)*p' but i keep getting it wrong

jsyz
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Lab Report 5 - Page 2 Empty huhh

Post  12345678 Wed Oct 22, 2008 10:32 pm

that should be right.. are you using the right deltaw/w?

.. were all asking the same question.. and im gonna ask it again.. lol does ANYONE know how to find the ratios for 38 and 40? so many people have asked this but no ones given an answer yet Sad

12345678
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

Post  question Wed Oct 22, 2008 10:47 pm

ratio= (KE'-KE)/(sqrt(DeltaKE)^2+(DeltaKE')^2)
just plug in the numbers

question
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Lab Report 5 - Page 2 Empty 38+40

Post  hiyo Wed Oct 22, 2008 11:12 pm

are the answers to questions 38 and 40 the same?

hiyo
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Lab Report 5 - Page 2 Empty Q#7

Post  00 Thu Oct 23, 2008 12:32 am

what value of "t" do you use to calculate the velocity?

00
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Lab Report 5 - Page 2 Empty #23

Post  physucks Thu Oct 23, 2008 1:19 am

does anyone know how to do number 23...i know someone asked before but no help Crying or Very sad

physucks
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Lab Report 5 - Page 2 Empty Question 32

Post  heidy Thu Oct 23, 2008 12:10 pm

to find Deltav_i^2/v_i^2 just multiply Deltav/v by 2 the answer should be 0.0800

heidy
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Lab Report 5 - Page 2 Empty 33

Post  33 Thu Oct 23, 2008 2:01 pm

how do u find delta KE' - why isnt it the same as delta KE?

33
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Lab Report 5 - Page 2 Empty 32

Post  32 Thu Oct 23, 2008 2:23 pm

nvm i got it!

32
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Lab Report 5 - Page 2 Empty delta ke prime 36

Post  36 Thu Oct 23, 2008 2:24 pm

whats delta ke ' for 36? how do u compute it...i keep getting it wrong

36
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Lab Report 5 - Page 2 Empty 36

Post  36 Thu Oct 23, 2008 2:25 pm

my bad i have delta Ke' i meant KE'

36
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Lab Report 5 - Page 2 Empty 36

Post  36 Thu Oct 23, 2008 2:31 pm

nvm got it

36
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Lab Report 5 - Page 2 Empty Re: Lab Report 5

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