12. A ball of modeling clay has a mass of 240 g and a diameter of 11 cm with an axis of rotation through the center. 13. A wooden dowel rod has a mass of 0.88 kg and a length of 1.2 m with an axis of rotation through the end.

14. A bolt in a table saw needs to be tightened. Jim applies a force of 82 N with a wrench that is held 60° from the perpendicular and is 42 cm long. What torque does the wrench exert on the bolt?

15. Christopher, who weighs 240 N, and Thomas, who weighs 185 N, are sitting on opposite ends of a balanced seesaw. If Thomas is sitting 1.2 m from the balance point, how far is Christopher sitting from the balance point?