A boat is traveling 12m/s East along a river that pushing the boat with a velocity of 8m/s South, what would be the magnitude of the boat's resultant velocity (just the value with no direction)? a)17.8m/s
b)14.4m/s
c)4m/s

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)