The "giant swing" at a county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. each arm supports a seat suspended from a cable 5.00 m long, and the upper end of the cable is fastened to the arm at a point 3.00 m from the central shaft. (a) find the time of one revolution of the swing if the cable supporting a seat makes an angle of 30.0∘ with the vertical. (b) does the angle depend on the weight of the passenger for a given rate of revolution?

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?