General Physics Problem

[Simple_Simon]

I have a simple physics problem I'm not sure how to solve.

A child builds a big snowman which contains 50kg of snow. How much energy would it take to melt it from an initial temperature of -2 degrees Celsius?

[Doc Al]

A child builds a big snowman which contains 50kg of snow. How much energy would it take to melt it from an initial temperature of -2 degrees Celsius?
Solve it in two steps. First find the heat needed to raise the temperature of the ice from -2 to 0 degrees C:
Q_1 = mc_{ice}\Delta t (c_{ice} is the specific heat of ice/snow)
Then find the heat needed to melt the ice:
Q_2 = mL_{water} (L_{water} is the latent heat of fusion for water-ice)