30g of metal at 90oC is placed at 20oC in a calorimeter of mass 70g made of the same metal. If the final temperature is 22.1oC. Calculate the specific heat capacity of the metal.
"Q_1=Q_2,"
"Q_1=cm_1(t_1-t),"
"Q_2=cm_2(t-t_2),"
"cm_1(t_1-t)=cm_2(t-t_2),"
"c=920~\\frac J {kg\\cdot \u00b0C}."
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