Arthur negligently stopped his car on the highway. Betty, who was driving along, saw Arthur's car in sufficient time to attempt to stop. However, Betty negligently put her foot on the accelerator instead of the brake and ran into Arthur's car. If Arthur sues Betty for damages:

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

The electric field inside a cell membrane is 8.0mn/c. what's the force on a singly charged ion in this field?