Two charges Q 4 uC and Q2- 36 uC are placed on the two corners of a square as shown in the figure below. If the side length of the square is a99 mm, how much work is required to bring a third charge, Qas-17 µC from infinitely far away to the empty bottom-right corner of the square? Please take k= 9.0x 10° N.m2/c2 and express your answer using one decimal place in units of J or N.m. Please do not forget to type the minus sign if you got a negative value. Q1 a a a Q2 a

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