Three 45-g ice cubes at 0 degrees celsius are dropped into 5.00x10^2 ml of tea to make iced tea. the tea was initially at 20.0 degrees celsius; when thermal equilibrium was reached, the final temperature was 0 degrees celsius. how much of the ice melted, and how much remained floating in the beverage? assume the specific heat capacity of tea is the same as that of pure water.