NEW YORK — Amazon.com Inc. surpassed $2 trillion in market value for the first time in afternoon trading on Wednesday. The push higher for Amazon’s stock market valuation comes a little more than a week after Nvidia hit $3 trillion and briefly became the most valuable company on Wall Street. Nvidia’s chips are used to power many AI application and its valuation has soared as a result. Amazon has also been making big investments in AI as global interest has grown in the technology.