Light of wavelength 675 nvm passes through a double slit, and makes its first minimum (m=1) at an angle of 0.111 deg. What is the separation of the slits, d, in MILLIMETERS? (remember, milli means 10^-3)

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)