Which theory describes Ryan's personality change?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Work = force × a. work b. energy c. distance d. momentum

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy