isabellaf4362 isabellaf4362
  • 22-01-2021
  • Physics
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An engine has an output energy of 2,400 J in 10 seconds. What is its average power in watts?

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cjrodriguez89
cjrodriguez89 cjrodriguez89
  • 22-01-2021

Answer:

P = 240 W

Explanation:

  • By definition, the average power is the rate of change of Energy (in Joules) regarding time (in seconds), as follows:

       [tex]P = \frac{\Delta E}{\Delta t} (1)[/tex]

  • Replacing in (1) by the givens of ΔE = 2, 400 J and Δt = 10 sec, we can find the average power in Watts as follows:

       [tex]P = \frac{\Delta E}{\Delta t} =\frac{2,400J}{10s} = 240 W (2)[/tex]

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