PLEASE HELP! A rightward force acts upon an object that is moving to the left. Describe the work the
force does on the object.
A. Positive work
B. Negative work
C. No work

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

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration