Which term is defined as the change in the direction of light when it goes from one medium into a different medium? question 2 options: diffraction absorption reflection refraction

Which type of wave can travel without a medium

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

All phase changes are .an example of a phase change is an ice cube melting