A runner begins a race from the starting line and accelerates to a speed of 9.7 m/s If it takes the runner 17.4 seconds to reach his maximum speed, what was his acceleration?

Which of the following characteristics of earth's relationship to the sun explains the existence of earth's seasons? choose all that apply. earth has a satellite called the moon, which rotates around earth. earth spins on its axis, completing one rotation each day. earth's axis always points in the same direction relative to the stars. earth's axis is tilted relative to its orbital plane. earth orbits around the sun, completing one orbit each year.