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MMLU / An electric motor has a label on it that reads: Input: 120V AC, 1.0 Amps, 60 Hz…

Problem

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question

An electric motor has a label on it that reads: Input: 120V AC, 1.0 Amps, 60 Hz - Efficiency - 75%. At what constant speed can the motor lift up a 6 kg mass?

choices

  1. 0.5 m/s
  2. 1.0 m/s
  3. 1.5 m/s
  4. 2.0 m/s

subject

high_school_physics

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Source and history

Official source

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