Calorie (energy) and horsepower (power) are two non-SI units that you might see on occasion.

A. Death Valley National Park contains a region that is rich in borax. In the 19th century, borax was harvested and shipped on wagons pulled by20-mule teams. Estimate the power driving these wagons, in Watts, using the assumption that a20-mule team provides 20 horsepower.

B. A stove produces 10,000 calories of heat. What is this in Joules? In BTU?

C. An engine produces 100,000 calories of work in1 minute. What is the power of the engine in horse power, and in Watts?