Answer:Copper
Explanation:
Given
mass of copper sphere [tex]m_{cu}=50 gm[/tex]
mass of Aluminum sphere [tex]m_{Al}=25 gm[/tex]
Specific heat of copper [tex]c_{cu}=0.4 J/g-^{\circ}C[/tex]
Specific heat of Aluminium [tex]c_{Al}=0.9 J/g-^{\circ}C[/tex]
Heat require to reach body temperature
suppose temperature difference is [tex]\Delta T[/tex]
[tex]Q_{cu}=m_{cu}\cdot c_{cu}\cdot \Delta T[/tex]
[tex]Q_{cu}=50\cdot 0.4\cdot \Delta T=20\Delta T[/tex]
[tex]Q_{Al}=25\cdot 0.9\cdot \Delta T=22.5\Delta T[/tex]
So Copper sphere will come to body temperature first because it has less specific heat .
