A 250-g piece of an unknown metal has been in boiling water for several minutes. To bring this metal at room temperature \(\left(20^{\circ} \mathrm{C}\right), 89.8 \mathrm{~kJ}\) of heat must be removed.

(a) Calculate the specific heat of the metal.

(b) Determine what type of metal is the sample using your answer in part \(a\).