Two vehicles X and Y moving in the same direction with the velocity of 12m/s and 8 m/s respectively. Calculate the relative velocity of X with respect of Y. Also calculate the relative velocity of when they are moving in opposite directions. Please also explain it ​

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.

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)

Why is a noble gas different from other elements