Units of measurement
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Horsepower-hour (hp·h)
British Thermal Unit (BTU)
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Horsepower-hour (hp·h)
Horsepower-hour (hp·h) — a unit of energy equal to 2.685 × 10⁶ joules, used in mechanics and engine performance.
British Thermal Unit (BTU)
British Thermal Unit (BTU) — a unit of energy used in the US and UK, approximately equal to 1055 joules.