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12 February, 06:03

It takes about four minutes to bake a potato in a 1000 W microwave oven. How much energy is used?

Answer:.07kWh

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Answers (2)
  1. 12 February, 06:16
    0
    1000W * 4*60 s / (3600 s/h) / (1000 W/kW)

    = 1000*4*60 / (3600*1000) kW-h

    = 240/3600 kW-h

    =1/15 kW-h

    = 0.0667 kW-h (to 4 decimal places)
  2. 12 February, 07:17
    0
    0.07 kWh
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