# Lab Report 5

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## Lab Report 5

anyone got number 1?

guest23
Guest

## Report #5

Hey does anyone know how to calculate the ratio for questions 14 and 20?

Karakter
Guest

## ques 9

how is v(i) prime found?

guest23
Guest

## Ratios of to Question 14 and 20

For 14 you must take from question 13:
Momentum after-momentum before/ sqrt(Deltapprime^2+Deltap^2)

The same thing for question 20

For question one we must select the correct statements in the bunch
-The velocity of the incident object after the collision = 0 when the two masses are equal
-The incident object continues in the same direction when the incident mass is bigger than the tartget mass
- The velocity of the target object after the collision equals the incident velocity when the two masses are equal.

For v(i) prime you would just take the width of whichever velocity you are finding(either big mass or small mass) and divide this by your t(i) prime.

Does anyone know the syntax for question 31?
My numbers are coming out correct but I cannot write it out with the syntax?

Guest24
Guest

## ques 14

my ques 14 is still coming out wrong.

guest23
Guest

## ques 23

table 5, how is deltav(i)/v(i) found?

guest23
Guest

## lab 5

for number 5 the error for time is negligible so deltav(i)/v(i)= deltaw/w. Your delta is .002 which was stated in the manual and the w depends on whether it is the small or big glider.

guest007
Guest

## Question 14

I believe it is dependent on your answers to question 13 so for me for example
My total momentum before=.09709
My total momentum after=.098646
My error deltap before=.0039
My error deltapprime after=-.0008

So i for my numerator I have .098646-.09709=.001556
For my denominator I have sqrt(.0039^2+-.0008^2)=.0039812058

So numerator over denominator I have an answer of .3908 which was accepted by Mapleta
My only suggestion is make sure you have your TOTAL momentum and not just one value you must sum up the two momenta after.
Good luck.

Guest24
Guest

## ques 24

thanks for the previous. it worked!

for ques 24, how do you get deltap(i) prime??

guest23
Guest

## ques 31

anyone understand ques 31??

guest23
Guest

## question 31

does anyone know the syntax for #31?

101
Guest

## Re: Lab Report 5

Is anyone else having trouble getting Maple TA to load? I hope it is fixed early today, I never graded myself, just Quit & Saved and don't wanna lose all my data.

1
Guest

## For question 31

The question says to refer to the previous question which is Lab 5 Part 1 Relative Error of your velocity. Take your answer from that question multiply that question by 2 and then multiply by your KE it should look like this:
2*Deltaw/w*.5*m*v^2

Guest24
Guest

## Question 6

Does anyone know #6. I'm probably getting parenthesis wrong or something.

guest...
Guest

## Question 7

what is the approximate value of Deltam/m (how do we get that?

B
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## Question 23

how do you find the two velocities in this table, it's different from the previous questions but i'm not sure what to do

Guest 69
Guest

## Question 7

How do we neglect Delta M / M? Is it just Delta V/V? (Delta W/ W)? If so, which w do we use, the small or big glider?

B
Guest

## Re: Lab Report 5

Man, that Lab was a BITCH

Well, I finally finished 40/40- 100% (one of the questions was 0 points)

I will only answer questions on here that require reasoning, not just numerical answers.

So if you are going to ask me, make it reasonable

Peace

B
Guest

## Re: Lab Report 5

for #2

how do u guys find the errors in dela ms, and mb

for 9

how do u find, vi, and delta vi/vi

thanx

hey
Guest

## Re: Lab Report 5

sorry, another question how do u find pi, and delta pi?

hey
Guest

## Question11

did anyone get #11.....pls help

Guest 0.
Guest

## QUESTION 38 AND 40

I know that you are supposed to use the inelastic KE for number 40 but I tried that and it didn't work but I calculated the ratio from the inelastic KE and entered it into 38 and it came out correct on maple even though for 38 I was supposed to use the elastic KE to calculate the ratio. However, now my problem is that 40 isn't working with the elastic or inelastic numbers anyone have any idea what the situation could be with that? SERIOUSLY NEED HELP IF ANYONE COULD HELP THAT WOULD BE GREAT!

gguest
Guest

Can someone help me find delta p thats the only thing im stuck on
thank u

Posts : 22
Join date : 2008-09-17

## Question12

Does anyone know the answer to this question

hiiiiiii
Guest

## Ans to Ques 12

P = p_1

P' = -pprime_1 + pprime_2

ehhwussu
Guest