Thursday, March 14, 2013

Experiment 2 Bernoulli's Equations


EXPERIMENT 2
In this experiment we will be exploring the power of bernoullis equations
you can see how to follow the procedure (set up) in the lab manual.
Here is the values for the constants that we will use
 
 
 
 
Here are the times obtained and the uncertainty calculation is on the bottom

 
 
 
 
 
 
 
 
 

 

1st Run
2nd Run
3rd Run
4th Run
5th Run
6th Run
Avg time
12.04
11.58
11.76
11.54
11.19
10.81
11.48666667
                                      subtract the average from each run
0.553333333
0.093333333
0.27333333
0.053333333
-0.2966667
-0.67666667
avg uncertainty
0.324444444


 



                                         11.48-.32 <TRUE VALUE< 11.48+.32or
 
 
Here are the constants measured with their corresponding uncertainty

 
 
here is the calculation in order to find the theoretical time. the procedure of how to add the uncertainty is also shown.
 
 
 
 

theoretical value
7.94< 8.98 < 10.02

 
comparing the theoretical time with the time that we took. it is easy to see that our times do not fall under the allowed uncertainity by a couple of seconds
 
 
 
calculated value
                                                           11.16 < true value < 11.8
                                                                theoretical value
7.94<   8.98  < 10.02
 
 
 
 
answer in finding the diameter of  the hole with the error percent .
 
 
 

 

 
in this case our measured value, and our calculated value fall under the allowed uncertainity
4.5 cm<True measured value  < 5.5 c.40                    .40cm <True calculated value<.49
 
 
sumarizing this experiment. we can coclude 2 things.the first conclusion is to recognize the authenticity of Bernoulli’s equations. The other conclusion is to say that small percent error can lead to huge different answers.
 
 

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