What happens to the orbit time as the distance increases.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =