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Yakvenalex [24]
3 years ago
4

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.

Physics
2 answers:
aleksklad [387]3 years ago
7 0

The answer is B.) 5.77 x 10^2 s

Readme [11.4K]3 years ago
3 0

The steam engine does  1.51 x 10⁴ joules of work per second.

To do 8.72 x 10⁶ joules of work takes it

                8.72 x 10⁶ Joules / 1.51 x 10⁴ J/sec

          =        (8.72 / 1.51) x 10²  seconds

          =            5.77 x 10² seconds

          =            577 seconds  =  9 minutes  37 seconds    
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Answer:

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