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Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.40x10^4 N/C, as shown in the figure below.

a) Calculate the electric flux through the vertical rectangular surface of the box. kN·m2/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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