Answer these questions.Topic electric fields

Part B Potential on the x-axis Equal and opposite charges +Q and -Q are situated at ta and -a on the x-axis, with the mid-point between them being the origin O. What is the potential at x = 50 nm on the x-axis (x > a) if Q = 1.6 x 10-19 C and a = 15 nm? Value Units Check my answer Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Part C Field on the x-axis What is the magnitude of the electric field at x = 50 nm on the x-axis (x > a) if Q =1.6 x 10 9 C and a = 15 nm? Value UnitsPart D Potential on the y-axis What is the potential at a point B, which is at x = 0 but at position y = 30 nm on the y- axis if Q = 1.6 x 10 19 C and a = 15 nm? Value Units Check my answer Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Part E Field on the y-axis What is the magnitude of the electric field at position y = 30 nm on the y-axis with x = 0 if Q = 1.6 x 10-19 C and a = 15 nm? Value UnitsPart A E Field Strength Calculate the electric field strength in air at a distance of r = 9.0 m from a point charge of Q = 5.0 uC. Value Units Check my answer Hint 1 Hint 2 Hint 3 Hint 4 Part B Change of charge and distance The charge is doubled and the electric field is measured a distance three times as far away. By what factor does the electric field change? Give your answer as a number less than one to 3.s.f. Value