One BTU is equal to how many foot-pounds of work?

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Multiple Choice

One BTU is equal to how many foot-pounds of work?

Explanation:
Energy units for work can be compared by converting to a common scale. A BTU is a unit of energy, and a foot-pound is a unit of work. Convert each to joules: 1 BTU is about 1055.06 joules, and 1 foot-pound is about 1.35582 joules. Dividing gives 1055.06 / 1.35582 ≈ 778.17, so one BTU is about 778 foot-pounds of work. The other numbers are just not close to this standard conversion, so they don’t fit.

Energy units for work can be compared by converting to a common scale. A BTU is a unit of energy, and a foot-pound is a unit of work. Convert each to joules: 1 BTU is about 1055.06 joules, and 1 foot-pound is about 1.35582 joules. Dividing gives 1055.06 / 1.35582 ≈ 778.17, so one BTU is about 778 foot-pounds of work. The other numbers are just not close to this standard conversion, so they don’t fit.

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