Use Coulomb's law to determine the magnitude of the electric field at points A and B in (Figure 1) due to the two positive charges (Q = 4.3 C) shown. Suppose that a 5.8 cm. Figure +Q Be a a AO + 2a 1 of 1 x +Q Determine the magnitude of the electric field at A. Express your answer to two significant figures and include the appropriate units. EA = Submit Part B 0A = O Submit Value Request Answer Determine the angle between the direction of the electric field at point A and the positive x-direction. Express your answer using two significant figures. 5. Units Request Answer ? ?