Two stationary positive point charges, charge 1 of magnitude 4.00{\rm nC} and charge 2 of magnitude 1.70{\rm nC} , are separated by a distance of...

Two stationary positive point charges, charge 1 of magnitude 4.00{rm nC} and charge 2 of magnitude 1.70{rm nC} , are separated by a distance of 46.0{rm cm} . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges.