A car travels south on a highway for 2 h at 90 km/h. The car reverses direction and heads north for 0.5 h at 80 km/h. What is the car's position
relative to where it started?

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

The record distance in the sport of throwing cowpats is 81.1 m. this record toss was set by steve urner of the united states in 1981. assuming the initial launch angle was 45° and neglecting air resistance, answer the following. (a) determine the initial speed of the projectile. m/s

What is the momentum of a 47-gram tennis ball that is traveling at 40 m/s