Question

why did Einstein write a to Franklin Roosevelt?​

Answer 1

Answer:

In August 1939, Einstein wrote to U.S. President Franklin Roosevelt to warn him that the Nazis were working on a new and powerful weapon: an atomic bomb. Fellow physicist Leo Szilard urged Einstein to send the letter and helped him draft it.

hope it's help you

please mark me as brainlist

Answer 2

Answer:

With the emergence of Nazis in Germany, Einstein emigrated to the United States. It was the fact that the Nazis had the ability to develop the atomic bomb. It could destroy the whole world. So he warned Franklin D. Roosevelt in his letter.