Question

14)

Answer 1

Watt is a unit for power that is also equal to J/s. We therefore need to convert the minutes to seconds first before answering. Every minute is comprised of 60 seconds. Therefore, 3 minutes are composed of 180 seconds. Multiplying the number of seconds to the given power will give us,
                                    Work = Power x time
                                              = (1500 J/s) x (180 s) 
                                              = 270,000 J
Therefore, the answer is letter D.