Ninety-nine percent of the radiation from the sun consists of visible light, ultraviolet light. true or false?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7