Me out! ! (: a physical quantity x depends on mass, distance, and time. use dimensional analysis to decide which of these is a possible expression for x, where a is acceleration, v is velocity, and f is force. a. x=1/2at² b. x=at c. x=ft d. x=vt

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.