An electric heater supplies heat to a system at a rate of \(100~\text{W}\). If the system performs work at a rate of \(75~\text{J/s}\). At what rate is the internal energy increasing?
1. | \(20~\text{W}\) | 2. | \(25~\text{W}\) |
3. | \(29~\text{W}\) | 4. | \(27~\text{W}\) |