Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released. One sphere is 60.0 cm in diameter, has mass 50.0 g and contains -10.0 µC of charge. The other sphere is 40.0 cm in diameter, has mass 150.0 g, and contains - 30.0 µC of charge. Find the maximum acceleration and the maximum speed achieved by each sphere (relative to the fixed point of their initial location in space); assuming that no other forces are acting on them.