Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.20 x 104 N/C as shown in the figure below. 10.0 cm 30.0 cm 60.0 E (a) Calculate the electric flux through the vertical rectangular surface of the box. kNm²/c (b) Calculate the electric flux through the slanted surface of the box. kN - m²/c (c) Calculate the electric flux through the entire surface of the box. kN - m²/c

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