Answer :

Two technologies that have significantly contributed to America's development into a powerful country are:

1. **The Internet:** The development and widespread adoption of the internet have revolutionized communication, commerce, education, and virtually every aspect of modern life. The internet has facilitated global connectivity, innovation, and economic growth, making it a cornerstone of America's technological dominance.

2. **The Automobile:** The automobile industry played a pivotal role in shaping America's economy, infrastructure, and culture. It revolutionized transportation, enabling mobility, urbanization, and the expansion of industries such as manufacturing, tourism, and retail. The automobile also fueled innovation in engineering, materials science, and urban planning, contributing to America's economic prosperity and global influence.