Respuesta :
Power Rating = [tex]\(1.1 \times 10^3\)[/tex] W
Time for which the machine is operating = 2 hours
Time in seconds = 2 × 60 × 60
Time = 7200 seconds
Now, we need to use the formula for work done.
Work done = Power × time
Work done = [tex]\( 1.1 \times 10^3 \times 7200\)[/tex]
Work done = [tex]\(7.92 \times 10^6\)[/tex] Joules
Hence, work done by the machine in 2 hours is [tex]\(7.92 \times 10^6\)[/tex] J.