If the light ray hits a mirror at a 40° angle (above picture), what angle will the ray of light be reflected? *
4 points
140°
40°
50°
90°

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

During the past 150 years in the united states, how did energy consumption compare to population growth