Pedram is pulling on the doorknob of his dorm door to keep it closed while Angelica is pulling from the other side to try to get into the room. The doorknob is 0.7 m from the hinge of the door. a) If Pedram is using a force of 75 N exerted at an angle of 75° to the door, what is the magnitude of the torque on the hinge, to the nearest one decimal place? b) Angelica is exerting a force at 85° to the door. What force does Angelica need to use to open the door?