Q1=-8 micro-C o / \ / \ / \ / \ / \ / \ / \ / \ / \ Q2=-9 micro-C o-------------------o Q3=-6 micro-C |------- 4cm -------|3 charges are arranged on an equilateral triangle as shown above. What is the potential energy of this charge configuration? Use the convention that U = 0 when the charges are infinitely apart. Specify your answer to three significant places.