6,7,8 please and thank you so much

6. As shown to the right, two identical 1.5 x 10 * kg balls carry identical charges and are suspended by two threads of equal length. They remain stationary in the position shown. Then it is met ever Determine the charge O on each ball. which 7. Examine the two charged particles to the right. 2.0 x 10-7 C tional P -5.0 x 10-8 C marks O -X 5.0 cm 5.0 cm O a) Determine the magnitude and direction of the net electric field strength at position P. a) 4 marks 5 HC charg b) Calculate the magnitude of the force that acts on a +4.0 x 108 C charge placed at position P. 8. An electron is travelling at 8.50 x 10' m/s from some distance away directly towards a larger charge of -1.55 x 106 C charge, as shown below: 8.50 x 10' m/s O e- O -1.55 x 106 C How close does the electron get to the larger charge