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MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
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LSGH LLC
Apr-2003 - Apr-2007
Help with measures coming from a pulley-masses system. Please explain your reasoning.
1. Calculate the acceleration for the two sets of data you recorded and compare these values to those obtained by measuring distance and time using percent error. Cites two factors that may cause discrepancies between the two values.
2. Calculate the tension in the string for the falling washers. Show all calculations. From these two values and the one where the masses were equal, identify a trend about the tension in the string as the acceleration increases.
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Table 5: Motion Data |
|||
|
Mass of 15 Washers |
0.04 Â kg |
Average Mass of |
0.00267 Â Â kg |
Â
|
Table 6: Procedure 1 Motion Data |
|
|
Mass of M1Â (7 washers): Â Â Â (??????) Please answer |
|
|
Mass of M2Â (8 washers): Â Â (??????)Please answer |
|
|
Height (m): Â .25 |
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|
Trial |
Time (s) |
|
1 |
2.11 |
|
2 |
1.86 |
|
3 |
1.73 |
|
4 |
1.83 |
|
5 |
2.76 |
|
Average |
1.198 |
|
Average Acceleration (m/s2) |
0.66 |
Â
|
Table 7: Procedure 2 Motion Data |
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Mass of M1Â (6 washers): Â (????) Please answer Mass of M1Â (9 washers):(?????) Please answer Height (m): Â .24 |
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|
Trial |
Time (s) |
|
1 |
0.91 |
|
2 |
0.81 |
|
3 |
0.88 |
|
4 |
0.88 |
|
5 |
0.93 |
|
Average |
0.882 |
|
Average Acceleration (m/s2) |
1.41 |
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