Please answer this Physics question.

5. A disk with mass M' 1.2 kg and radius R 55 cm rotates with an initial angular speed of mi : 1.8 revolutions per second. {a} Calculate the disk's rotational inertia. The rotational inertia of a rotating disk is (\"2311111132. (b) Calculate the angular momentum of the rotating disk. (e) A small child then drops a point-like piece of clay with mass m. = \".12 kg onto the disk and it sticks to the disk a distance r 45 cm from the axis of rotation. Calculate the rotational inertia for the disk and clay system. The rotational inertia for a point-like object is given by I \"an"2 where r is the object's distance from the axis of rotation. (1 Calculate the nal an ular s eed w . in revolutions er second. ( g p 9 Jr. p Show all your work