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8 Energy – forces doing work

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Question 49

A conveyor carries parcels between two levels.

For every 28 kJ of energy supplied to the conveyor, 21 kJ is transferred usefully while moving the parcels.

Calculate how much of the 28 kJ supplied is transferred in unwanted ways.

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8 Energy – forces doing work Questions

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

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