4. [-/10 Points] DETAILS OSCOLPHYS2016 18.4.WA.032. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE (a) What magnitude point charge creates a 40,000 N/C electric field at a distance of 0.277 m? (b) How large is the field at 24.0 m? N/C Additional Materials Reading 5. [-/10 Points] DETAILS OSCOLPHYS2016 18.4.WA.033. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) What is the electric field 4.4 m from the center of the terminal of a Van de Graaff with a 8.10 mC charge, noting that the field is equivalent to that of a point charge at the center of the terminal? N/C (b) At this distance, what force does the field exert on a 1.95 JC charge on the Van de Graaff's belt? Additional Materials Reading 6. [-/10 Points] DETAILS OSCOLPHYS2016 18.5.WA.046. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER MacBook Pro