3.) An object is undergoing uniform circular motion. Deternine the speed and the magnitude of its acceleration if its period T and radius r are given, for the following cases: a.) T = 1 s, r =1 m. b.) T =1 s, r= 10 m. c.) T = 10 s, r = 1 m. d.) T = 10 s, r = 10 m. (T is the amount of time it takes for tlhe olbject to conmplete one lap around the circle: T=2nr.)