Answer:
2.5 min
Explanation:
Hello
by definition the power is the amount of work done per unit of time. in this case, we know the total power and the work developed
[tex]1 Watt= \frac{Joule }{sec}[/tex]
Let
[tex]P=1200 W\\E=1.8 *10^{5}\\X=\frac{1.8 *10^{5} j }{1200 W}\\X= unknown\ time\ (sec) \\\\we\ need\ the\ answer\ in\ minutes,\\ 1\ min=60\ sec\\\\x=150 sec \\150\ sec*(\frac{1 min}{ 60 sec})=2.5 min\\[/tex]
hence , the data is not altered, we did it like this to eliminate the sec units.
Answer 2.5 min
I hope it helps
