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8 Energy – forces doing work

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Question 30

A pottery kiln operates at 4.5 kW for 2.0 hours2.0\ \mathrm{hours}2.0 hours. A ventilation fan operates at 250 W.

Calculate how many hours longer the ventilation fan must operate to transfer the same total energy as the pottery kiln.

[5]
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8 Energy – forces doing work Questions

  1. GCSE
  2. /Physics
  3. /8 Energy – forces doing work

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