Asystem is a group of related parts with specific roles that work together to achieve an observed result. seeds, soil, a plow, and a large field are parts of what type of system? a. a legal system b. an agricultural system c. an urban system d. an organ system

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d