Homework Statement
Two spherical soap bubbles of radii a[1] and a[2] are made to coalesce. Show that when the temperature of the gas in the resulting soap bubble has returned to its initial values, r of the bubble is given by p*r^3+4*\gamma*r^2=p(a[1]^3+a[2]^3)+4\gamma(a[1]^2+a[2]^2) where p...