G) Sketch the data points that appear in the proul vs. Repeat the process in the F_coul column to enter the equation needed for the calculation.
#CALCULATED COLUMN LOGGER PRO PRO#
( Use the equation you derived in part (e) together with the x_ball data to have Logger Pro calculate the experimental value of the electrostatic force in each frame from your data. The Calculated Column Options dialog will open so you can enter the equation you need. Since the column has been established for you, choose Column Options from the Data menu and select r. (h) Next use the New Calculated Column feature to calculate, r, the distance between the balls from the data. Be consistent in marking the same location on each ball because when doing the r calculations location errors will be magnified by small differences in the exact location of each ball. There are more detailed instructions in the text box included in (1) Use the information on the title screen of the movie to determine the effective length, L, of the string suspending the ball in meters (that is, the vertical distance given for the suspension line from the ceiling to the hanging ball). Note: Be careful when taking video data to locate the center of the ball and prod as precisely as possible. Columns have been established for video analysis of the locations of the prod and the ball. Also, the origin has been moved to the center of the hanging ball in the first frame when no horizontal forces act on it. The movie has been calibrated using the meter marker of the first frame. In order to proceed, open the Logger Pro experiment file Experimental Verification of the Inverse Square Force: You now have an equation you can use with the Logger Pro software to analyze the movie and determine the relationship between the magnitude of Coulomb force on the hanging ball, foul and the distance, r, between the ball on the prod and the hanging ball.#CALCULATED COLUMN LOGGER PRO MOVIE#
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