Please help me solve these 2 questions please

Part A Determine the change in rotational kinetic energy when the rotational velocity of the turntable of a stereo system increases from 0 to 33 rpm. Its rotational inertia is 6.4 x 10- kg . m Express your answer to two significant figures and include the appropriate units. HA Krotational = Value Units Submit Request AnswerCo Part B Consider a particle of mass m = 25.0 kg revolving around an axis with angular speed w. The perpendicular distance from the particle to the axis is r = 1.50 m . ( Assume w = 32.0 rad/s . What is the magnitude v of the velocity of the particle in m/s? Figure 1) VO AEd ? Figure 1 of 1 U = m/s Submit Request Answer Part C