Two charges are situated at the corners of an equilateral triangle as +5Q = (E0 36# +5Q 60 60 How much work does it take to bring in another charge +q from far away and place it in the third corner? 60 (12p) b) A positive 3q charge is located at distance d-9mm from a grounded conducting plane. Determine the force on the +3q caused by charges induced on the plane. Be careful about the sign of the induced charge. 10-9 F/m, q=10-7 C)