A copper rod that has a mass of 200. 0 g has an initial temperature of 20. 0°C and is heated to 40.0°C. If 1,540 J of heat are needed to heat the rod, what is the specific heat of copper?
Use q equals m C subscript p Delta T.
1. 0130 J/(gi°C)
2. 0649 J/(gi°C)
3. 193 J/(gi°C)
4. 385 J/(gi°C).