Grace is playing with her dolls and decides to give them a ride on a merry-go-round. She

Question:

Grace is playing with her dolls and decides to give them a ride on a merry-go-round. She places one of them on an old record player turntable and sets the angular speed at 33.3 rpm.
(a) What is their angular speed in rad/s?
(b) If the doll is 13 cm from the center of the spinning turntable platform, how fast (in m/s) is the doll moving?