Figure 13-47 a shows a particle A that can be moved along a y axis from an infinite distance to the origin.

Figure 13-47 a shows a particle A that can be moved along a y axis from an infinite distance to the origin. That origin lies at the midpoint between particles B and C, which have identical masses, and the y axis is a perpendicular bisector between them. Distance D is 0.30 7 m. Figure 13-47b shows the potential energy U of the three-particle system as a function of the position of particle A along the y axis. The curve actually extends rightward and approaches an asymptote of -2.7 X 10^-11 J as y →∞ m. What are the masses of (a) particles B and Cand (b) particle A?