Question

How long does it take a 20 kW steam engine to do 7.3×10^7 J of work?

Answer 1

2*10^4 joules/second*t seconds =7.3*10^7J

t = (7.3/2) 10^3
= 3.65 * 10^3 seconds
= 3,650 seconds
= 1.01 hours

Answer 2

thank you so much!