18) Three point charged objects are placed at the corner of a right-angle triangle as shown in Written Response: the diagram, Calculate the net electric force on B due to the other two charges. Show all of your work. State your final answer, rounded to the appropriate number of significant digits, in a sentence. +4.00 JC 0.10 m -2.00 LLC in 27) Three pith balls hang in an isolated container. Ball A has a charge of 1.0 x 10 9 C, and balls B and C are neutral. Ball A is brought momentarily into contact with ball B, then separated. Ball B is then brought momentarily into contact with ball C, then separated. When placed 1.0 m apart, balls A and C will now exert a force on each other of 0.075 m magnitude Initially U 1.0 x 10* C Neutral Neutral 6.00 JC U