X Ka The Expert TA | Human-like Gr. X + expertta.com/Common/TakeTutorialAssignment.aspx (8%) Problem 2: Point charges of 0.28 pC and 0.4/ JC are placed 0.55 m apart. 50% Part (a) At what point along the line between them is the electric field zero? Give your answer in meters from the 0.28 uC c = 0.2500 Correct! $ 50% Part (b) What is the magnitude of the electric field, in newtons per coulomb, halfway between them? ed E = 22581.8