5. Find the net torque for both 8.0 N 65 N 10 N 450 1320 580 56 N 25 cm 75 cm 52 N FIGURE P7.25 6. If you have dough in the shape of sphere with a mass of 5 kg and a radius of 2 m rotating about its center at 22 rad/s, what would be its new velocity if the dough sudden changes to a disk with a radius of 2.5 m? At what radius would the dough have to change to keep the same angular velocity? 7. If you have sphere that has a mass of 2 kg and a radius of 4 m with an angular velocity of 25 rad/s, but the sphere grows to 8 m what is its new velocity? 8. Two cylindrical plates, plate one with a mass of 5 kg and a radius of 2 m while the other has a mass of 7.5 kg and a radius of 3 m are each rotating in opposite directions. Plate 1