Three charges are in a straight row. the first charge has a value of 5.00 x 10-5 c. the second charge also has a value of 5.00 x 10-5 c and is 2.50 cm to the right of the first charge. the third charge has a value of -2.50 x 10-5 c and is 2.00 cm to the right of the second charge.