A girl with mass 13 kg starts at the top of a 2.6 m high playground slide which is inclined at an angle of 280 . She then slides down and reaches the bottom of the slide with a speed of 1.1 m/s. How much mechanical energy was lost by friction

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?