HELP IM STUCK WELL MARK A BRAINLIESS IF ITS RIGHT

a cow sees a break in the fence and runs for her freedom. as she passes through the fence her speed gose from 3 m/s to 10 m/s in a matter of 90 seconds. calculate her acceleration. show your work and include correct units for full credit. round your answer to proper significant figures

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?