Aprofessor sits on a rotating stool that is spinning at 10.010.0 rpm while she holds a heavy weight in each of her hands. her outstretched hands are 0.7050.705 m from the axis of rotation, which passes through her head into the center of the stool. when she symmetrically pulls the weights in closer to her body, her angular speed increases to 28.528.5 rpm. neglecting the mass of the professor, how far are the weights from the rotational axis after she pulls her arms in?

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?