Give me the proper mathematical answers

13. The magnitude of the electrostatic force between two charges if F. If the distance between the charges is increased by a factor of , what is the new force between the charges? (A) F ( B ) 2 F (C) - F ( D) 2 F 14. What is the magnitude of the electric field at a point 0.012 m from a charge of 0.28 C? (A) 1.9 x 103 N /C (B) 2.1 x 1013 N/C (C) 4.9 x 10 12 N/C (D) 1.8 x 1013 N / C 15. What force is experienced by a 2.50 x 10 -6 C test charge placed in a 2.92 x 104 N/C electric field? (A) 8.56 x 10 - 11 N (B) 7.30 x 10 - 2 N (C) 6.57 x 108 N (D) 1.17 x 1010 N Multiple Choice Answers (Please use capital letters): m V 10 Part II: Complete each question in the space provided. (28 Marks) 1. Calculate the net gravitational force on Tatooine, due to its twin suns, Tatoo I and Tatoo II. [5 Marks] Tatoo Il (2.86 x 10 15 kg) 8.7 x 10 m Tatoo I (1.46 x 10 15 kg) Tatooine (7.38 x 10 kg) 3.7 x 10' m