A glass beaker holds $0.20\text{ kg}$ of water at $20\degree\text{C}$. The specific heat capacity of water is $4200\text{ J/(kg }\degree\text{C)}$. A brass block with mass $0.15\text{ kg}$ is initially at $170\degree\text{C}$. The block is then gently placed into the beaker of water. When thermal equilibrium is reached, both the water and the brass are at $30\degree\text{C}$. Determine the specific heat capacity of the brass. (Assume that no water is lost and no thermal energy has been transferred to the beaker or the surroundings.)
- A$400\text{ J/(kg }\degree\text{C)}$
- B$660\text{ J/(kg }\degree\text{C)}$
- C$1200\text{ J/(kg }\degree\text{C)}$
- D$5600\text{ J/(kg }\degree\text{C)}$