Repeat Problem 24.1 if the spheres are separated by a center tocenter distance of 1.5 m in a large vat of water. The dielectric constant of water is about 80.

Problem 24.1

Two small spheres in vacuum are 1.5 m apart center-to-center. They carry identical charges. Approximately how large is the charge on each if each sphere experiences a force of 2 N?