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Questions

A. The quadratic curve fit yields coefficients A, B, and C. What does A represent? Use this

calculate the percent difference for g a second time.

B. Pick two points on your graph of average velocity versus time, one on the line near the

beginning of the data and one on the line near the end of the data. Find the "area" under

this curve (note that this is not really an area). What does what you have found represent

physically?

C. Classify the following as to whether the error each introduces is random or systematic or

possibly both: (a) air friction, (b) measurements of length estimated to fractions of a

millimeter, (c) fluctuations in the spark time intervals, and (f) error in the value of the

frequency of the spark source.

Fig: 1