A vinyl record on a turntable rotates at 331/3 rev/min. (a)

A vinyl record on a turntable rotates at 331/3 rev/min. (a)

A vinyl record on a turntable rotates at 331/3 rev/min.
(a) What is its angular speed in radians per second? What is the linear speed of a point on the record?
(b) 15 cm and
(c) 7.4 cm from the turntable axis?

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