Problem 7:A water wheel with radiusR_w=1.9m and massM_w=1.95x 10³kg is used to power a grain mill next to a river. Treat the water wheel as a hollow cylinder. The rushing water of the river rotates the wheel with a constant frequencyf_r=1.5Hz. Randomized VariablesR_w=1.9m M_w=1.95x 10³kg f_r=1.5Hz

Part (a)Calculate the angular velocity _w of the water wheel in radians/sec.

Part (b)Calculate the kinetic energy K_w, in J, of the water wheel as it rotates.

Part (b)Calculate the kinetic energy K_w, in J, of the water wheel as it rotates.