Three small spheres, each have a charge of 3.60 %u03BCC, are arranged in a line, with sphere 2 in the middle. Adjacent spheres are initially 8.70 cm apart. The spheres have masses m1=20.0 g, m2=85.0 g, and m3=20.0 cm, and their radii are much smaller than their separation. The three spheres are released from rest.
(a) What is the acceleration of sphere 1 just after it is released?
m/s2
(b) What is the speed of each sphere when they are far apart?
sphere 1 m/s
sphere 2 m/s
sphere 3m/s