Question

How long does it take a 1.51 × 104 W steam engine to do 8.72 × 106 J of work? Round your answer to three significant figures. 1.02 × 101 s 5.77 × 102 s 7.21 × 105 s 1.32 × 1011 s

Answer 1

Answer:

5.89seconds

Explanation:

power is workdone over time, time is therefore workdone over power

(8.72*106)/(1.51*104)

=5.885

~5.89 seconds

Answer 2

Answer:

5.77 x 10^2 s

Explanation:

I got it right on edge