\fLesson unit 9 -ann An Line Course Physics 12 Electrostatics Send-In Assignment On-Line Course 4. Calculate the magnitude of the net electrostatic force acting on the 28 uC due to the other two charges shown. Assume that, relative to the 35 uC charge, the other two charges are positioned at right angles to each other. 56 uC 35 UC - - - 0.42 m 0.17 m 28 UC ive -22 4. 7 marks CS Version 1 2019 Page 3 of 13 Electrostatics\f\f\f