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Units & Conversionshard
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A rail locomotive has a power-to-weight ratio of 18.5 horsepower per short ton18.5 \text{ horsepower per short ton}18.5 horsepower per short ton. Convert this ratio to Watts per kilogram (W/kg\text{W/kg}W/kg). (Take 1 mechanical horsepower=745.7 W1 \text{ mechanical horsepower} = 745.7 \text{ W}1 mechanical horsepower=745.7 W, 1 short ton=2000 lb1 \text{ short ton} = 2000 \text{ lb}1 short ton=2000 lb, and 1 lb≈0.453592 kg1 \text{ lb} \approx 0.453592 \text{ kg}1 lb≈0.453592 kg)