A solid cube of copper and a solid cube of aluminum have equal masses and initially have the same internal energy. The two cubes have equal masses of m $=2\mathrm{.}4$ kg$,$ and the cubes have equal amounts of internal energy, $650,000$ Joules each. $($a$)$ What is the temperature of the copper cube in Celsius? Show that the answer is $427$C $($b$)$ What is the temperature of the aluminum cube in Fahrenheit? Show that the answer is $82$F Next the two cubes are put in thermal contact with each other and isolated from the environment until they reach thermal equilibrium. $($c$)$ What is the final temperature in Kelvin reached by the two cubes? Show that the answer is $421$ K