A charge, Q2 = -15.00×10-6 C, is 14.00 cm to the right of charge Q1 = 14.00×10-6 C. Where can a third charge be placed, along the line connecting Q1 and Q2, such that it experiences no net force (other than ±∞)? Give distances relative to Q1 and use a plus sign if the third charge is to the right of Q1 (and negative sign if the charge is to the left).