Answer:
14976J
Step-by-step explanation:
1. The formula to answer your question is q = mc(t1 - t2).
q= heat energy, m = mass, c = specific heat capacity, t1 = final temperature, and t2 = initial temperature.
2. Then, you need to convert the units.
c = 0.128 becomes 128 through something thats hard to type out.
3. You then plug in the variables.
q = 3.9 * 128(60 - 30)
4. Then you solve the equation and you should get q = 14976 J