What is the average speed of the object? What is the average velocity?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.