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10 May, 17:03

2. What do you need to do to calculate the efficiency of any machine

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Answers (2)
  1. 10 May, 17:50
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    Eff = WO/WI

    Explanation:

    Since work is the change in kinetic energy, the efficiency of a machine can be stated as the percentage of the output work divided by the input work minus the work lost from to friction and heat. Multiply Eff by 100% to get the efficiency percentage.
  2. 10 May, 18:42
    0
    Since work is the change in kinetic energy, the efficiency of a machine can be stated as the percentage of the output work divided by the input work minus the work lost from to friction and heat. Multiply Eff by 100% to get the efficiency percentage
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