Chevron Corp CVX.Ndropped after its first-quarter profit underwhelmed. By Bansari Mayur Kamdar and Noel Randewich April 29 (Reuters) - Wall Street finished sharply lower on Friday, as Amazon slumped following a gloomy quarterly report, and as the biggest surge in monthly inflation since 2005 spooked investors already worried about rising interest rates. "Market participants are nervous to begin with, so there is a quick trigger when it comes to these names when there's any uncertainty," said Keith Buchanan, senior portfolio manager at Globalt Investments in Atlanta.