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please answer question fully and label all parts. equations provided as reference. 4) (20 pts) A disk of mass 1.80 kg and radius 20.0 cm rotates at 20.0 rev/s. A smaller disk of mass 0.500 kg and radius 10.0 cm, initially not rotating, is placed on top of, and centered on the larger disk. What will be the new angular speed of the system? P = mv t = Frsine t= Id K = z mv I = F dt F= dP K p = = I w z dt w = I de I = Favg At W = Z I WA -7 I wi I = AP 1rev= 2Trad W = do fs & Ms n de L = I w a = dw T= AL at