After attending a Fourth of July fireworks extravaganza, Millie finds it difficult to hear normal conversation, and her ears keep “ringing.” What is causing her hearing problems? After riding the...

After attending a Fourth of July fireworks extravaganza, Millie finds it difficult to hear normal conversation, and her ears keep “ringing.” What is causing her hearing problems?

After riding the express elevator from the twentieth floor to the ground floor, for a few seconds you still feel as if you are descending, even though you have obviously come to a stop. Why?