A pump rated at 2 horsepower runs for 10 seconds. Roughly how much energy, in joules, does it deliver? Use 746 watts per horsepower.
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Correct!
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Correct answer to question 124 (Mechanical Comprehension): about 14,920 joules
Method
Power in watts is 2 x 746 = 1492 watts, and energy equals power times time: 1492 x 10 = 14,920 joules.
Updated: November 2026
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