Afire engine is rapidly approaching you are a stoplight what happens to the frequency and pitch of the sound is the fire engine draws closer

What are the three ways that an object can accelerate

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

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?