4) A planet is orbiting a star at a distance of 1.20 × 1011 mwith a period of 0.750 Earth years. What is the acceleration of theplanet?
5) A fan is rotating at a constant 360.0 rev/min. What is themagnitude of the acceleration of a point on one of its blades 10.0cm from the axis of rotation?
6) A particle travels in a circular orbit of radius 10.0 m. Itsspeed is changing at a rate of 15.0 m/s2 at an instant when itsspeed is 40.0 m/s. What is the magnitude of the acceleration of theparticle?