[JCbrotherhood]

A hot horseshoe (T = 600:0 K) is dropped into a bucket of water to cool. When the horseshoe has
 cooled, the temperature of the water has risen to 296K from a starting temperature of 289 K. The mass
 of the horseshoe is 0:80 kg and the volume of water in the bucket is 4:00 L. What is the heat capacity of
 the metal used to make the horseshoe? Note: For water C = 4:18 JK-1 g-1 and assume the density of
 water is  = 0:998 kg L-1.

[Hunter2]

Calculate the energy what you get from the data's of water. Backwards you can calculate the heat capacity of the metal of the horseshoe.