QuestionA 21,000-BTU air conditioner requires how many foot-pounds of energy to operate?
A 21,000-BTU air conditioner requires $\square$ foot-pounds of energy to operate. (Simplify your answer.)

Studdy Solution
Perform the calculation using the given BTUs:
$$\text{Foot-pounds} = 21,000 \times 778$$
Calculate the product:
$$\text{Foot-pounds} = 21,000 \times 778 = 16,338,000$$
A 21,000-BTU air conditioner requires $\boxed{16,338,000}$ foot-pounds of energy to operate.