Which force slows the golf ball as it rolls? gravity

friction

magnetism

force from the golfer

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

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?