Please answer all the coulomb law problems. Show your complete solution in each problem. Please also show the formula that you use. Thank you so much!

Solve the following (show your solution) 6-9. Two charges of + 10Care located 0.1 m apart. What is the magnitude and direction of force between them? 10-12A charge of 4 : 10" C is located 0.6 m from a charge of 5 x 10-" C. What is the force of attraction between them? 13-15, How far apart are two positive charges (10-8 () if the force between the two charges 1.5 : 10* N7