Three equal charges 6 μC are located in the xy-plane, one at (0 m, 35 m), another at (72 m, 0 m), and the third at (35 m, ?27 m). Find the magnitude of the electric field at the origin due to these three charges. The value of the Coulomb constant is 8.98755 x 109 N x m2/C2 . Answer in units of N/C.
Find the electric potential at the origin due to these three charges.