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** Measuring Atmospheric Pressure_labelMessages **
** Measuring Atmospheric Pressure_labelMessages **
when I squeeze the bottle, the water flows from the open tube into the graduated cylinder at a constant rate and the water in the pressurized tube moves a few centimeters in distance towards the capped end of the tube but stops as I stop increasing the force.
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I will use the 50% reduction for the greatest accuracy in this experiment. I know to divide my answers by 2 to get the actual real life measurements needed.
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42cm
The air column is 84cm in length with the 50% reduction so it is 42cm in real life. I measured from the end of the capped end to the beginning of the water meniscus after the air column.
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22 cm
42 cm
18, 7.2
18, 8.3
18.2, 8.4
18.4, 8.6
21, 9.0
The first line is the distance my first mark on the vertical tube is from the surface of the water in the bottle. The second line is the length of the air column as measured from the tip of the column tube to the start of the water. The 3rd through 7th lines give the differences the water traveled by the starting point and ending point of the meniscus.
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31 cm
41 cm
33, 15.1
34, 11.9
34.4, 10.9
34, 10.7
33.9, 10.3
The first line is the distance my second mark on the vertical tube is from the surface of the water in the bottle. The second line is the length of the air column as measured from the tip of the column tube to the start of the water. The 3rd through 7th lines give the differences the water traveled by the starting point and ending point of the meniscus.
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33.4 cm
41 cm
30.1, 9.9
30.9, 11.1
31.6, 10.2
31.9, 10.3
33.3, 9.7
The first line is the distance I could raise the water on the vertical tube from the surface of the water in the bottle. The second line is the length of the air column as measured from the tip of the column tube to the start of the water. The 3rd through 7th lines give the differences the water traveled by the starting point and ending point of the meniscus.
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*#&!*#&!
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You appear to have good data, which should give you good results in the next experiment.
Note that the reductions are not 50%. Each reduction yields a scale on the order of 60% that of the preceding. Your data from the optical distortion activity should provide a more accurate figure with which to convert the measurements.
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