Friction pulls directly against the direction of mation at 180 of a sled, and does -55.2 j or work while the sled moves 8.98 m

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

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

What is a good example of instantaneous speed