What type of friction occurs when you are trying to move an object, but the object isnt moving? rolling friction momentum friction static friction sliding friction

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.