Finding initial temperature of copper shot in water and aluminum cup

[tcharger130]

Homework Statement

A student doing an experiment pours 0.150 kg of heated copper **** into a 0.375 kg aluminum calorimeter cup containing 0.200 kg of water. The cup and water are both initially at 25 C. The mixture (and the cup) comes to thermal equilibrium at 28 C. What was the initial temperature of the shot?

Homework Equations

The only equations in the chapter are specific heat:

Q=cm(delta)T or c=Q/m(delta)T

The Attempt at a Solution

No clue

 

[Melgibson]

DeltaT = T_f -T_i

Q_calorimeter + Q_solution + Q_Water = 0