Hand written solution required

Question 7 part 1 of 1 10 points A particle with charge -6 pC is located on the r-axis at the point 10 em and a second particle with charge -3 pC is placed on the T-axis at - 10 cm . The value of the Coulomb constant is 8.9875 x 109 N . m2 /C2. O 10 8 6 4 2 2 4 6 5 8 10 T fem What is the magnitude of the total elec- trostatic force on a third particle with charge 9 pC placed on the r-axis at 2 cm ? Answer in units of N