# Lab Report 5

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## Question 32

did anyone get deltav^2/v^2?

stuck
Guest

## Re: Lab Report 5

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

num 9
Guest

## Re: Lab Report 5

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
Guest

## Re: Lab Report 5

how do i find the ratios...

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

yeahhhh
Guest

## question1?

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
Guest

## ratio questions

..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
Guest

## 32

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

32
Guest

## 6

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

guest101
Guest

## 6

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

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

guest101
Guest

## question 11

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
Guest

## Question 24

damn...

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

troubled
Guest

## question #11

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

ih8lab
Guest

## question 12

P=p_1
P'=pprime_2-pprime_1

ih8lab
Guest

## Re: Lab Report 5

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

jsyz
Guest

## huhh

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

12345678
Guest

## Re: Lab Report 5

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

question
Guest

## 38+40

are the answers to questions 38 and 40 the same?

hiyo
Guest

## Q#7

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

00
Guest

## #23

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

physucks
Guest

## Question 32

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

heidy
Guest

## 33

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

33
Guest

nvm i got it!

32
Guest

## delta ke prime 36

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

36
Guest

## 36

my bad i have delta Ke' i meant KE'

36
Guest

nvm got it

36
Guest