What is the Specific Heat Capacity of the Unknown Material?

[noobatphysics]

Homework Statement

In order to find the specific heat capacity of an unknown material,
a 50g piece is heated to 80 degrees Celsius and fully immersed in a well
insulatyed calorimeter filled with 100g of water at 10 degrees Celsius raising the temperature of the water by 5 degrees, the heat capacity of the calorimeter is 20 J K-1

Homework Equations

MC delta T = MC delta T ?

The Attempt at a Solution

no idea to be honest
at first i thought i can just use Q=mc delta T to do this but i don't know what Q is :S

 

[aim1732]

The final temperature of substance is same as that of water. You could still use the eqn. you wrote.