1. Using a rope in a manhole, an operator hoisted a 5-
gallon bucket of tools that weighs 72 pounds a
vertical distance of 28 feet in 60 seconds. How much
horsepower has the operator exerted in hoisting the
bucket?
1. 0.31 hp
2. 0.01 hp
3. 0.06 hp
4. 0.08 hp
fube daily effluent nitrate