~ 7 - . - . | a An experiment is performed to determine Coulomb's constant, k. The experimental apparatus is illustrated below. The charge on the dome of the Van de Graaff generator is 2.0 x 10 C, and the charge on the graphite-coated pith ball is -3.0 x 10 C. As the separation distance, d, between the dome and the pith ball ts varied. the angle, @ at which the pith ball is hanging is measured, Then the electrostatic force is calculated. The table below contains the data. Yum die (acini pater Observations Analysis | Reciprocal of the Separation Square of the Electrostatic Distance (m) Angle () Distance (m) Force (10 N) 0.29 190 | 65 0.38 WhO | 3.7 0.50 6.0 | 20 0.66 4.0 | 1.2 0.80 | 20 | 09 Written Response 10 marks 37. Using graphic analysis, determine the experimental value of Coulomb's constant, k. As part of your response, complete the data table, provide a graph of the electrostatic force as a function of the reciprocal of the square of the separation distance, determine the slope of your graph, and relate the slope algebraically to a physics equation. State all necessary physic principles and formulas