When String A is played with String B, it creates a 3.0 Hz beat frequency. When String A is played with String C, it creates a 3.0 Hz beat frequency. If you play String B and C together, what beat frequency will they make? (There are two possible answers; give one.)

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)