Answer: 462.00 Joules of heat will be needed to change the temperature of copper from 20° C to 60° C.
Explanation:
Mass of copper,m = 30.0 grams
Specific heat capacity of copper,c = [tex]0.385 J/g ^oC[/tex]
[tex]T_1=20^oC,T_2=60^oC[/tex]
[tex]\Delta T=T_2-T_1=60^oC-20^oC=40^oC[/tex]
[tex]Q=mc\Delta T[/tex]
[tex]Q=30.0 grams\times 0.385 J/g ^oC\times 40^oC=462.00 J[/tex]
462.00 Joules of heat will be needed to change the temperature of copper from 20° C to 60° C.