Lab 07: Coulomb's Law 7. Repeat step 6 until the table below is filled. m1 = m 2 91 = 30.8 AC 92 (nc) r (cm) 0 ( 0 ) 30.5 20 37 . 2 22 41. 4 18 .5 23 19. 5 24 54. 2 25.5 54.4 20 . 4 20.5 22 21 Data Analysis: You will be plotting your results to determine value of the Coulomb constant. 1. When plotting to determine Coulomb's constant, we do not want to use Eq. 1. It turns out, we can use the mass and angle of each measurement to calculate this using FE = mg tan 0. Using this equation, fill out the first column of the table below for the electric force felt by pendulum 2. Be careful of units! 2. Use the remainder of the data you collected to calculate and fill in the second column. Again, be careful of units! FE (N) 9192/72 (C2 / m2) 3. Refer back to Eq. 1. If you want the slope of your graph to be the Coulomb constant (y = ma), which column needs to be the vertical axis, and which needs to be the horizontal? Merced College PHSC-02L