Answer:
Enabled the development of an atomic weapon based on the the theories of German scientists involving energy and matter is the correct answer.
Explanation:
The project that was started to develop atomic weapons during the second world war in US is known as project Manhattan. The project began in 1939 with the support of president Franklin D. Roosevelt. The project was kept secret and not even the vice-president Truman was informed about it. It was only after death of FDR that Truman was informed and given reports about this project. The theories and formulas such as Einstein's mass energy equation was used in the construction of atomic bomb. The scientists working on Manhattan project successfully tested the atomic bomb on July 16, 1945. The first bomb was dropped over Hiroshima on August 6, 1945.
Not only did it renew the morale of the American public, but it convinced potential foreign partners, such as France, that American could win the war<span>, and that it might be in their best interests to send aid.</span>
The Renaissance slowly enabled people to think of themselves as individuals, to have confidence in their capabilities, and to look forward to the fame their achievements might bring. The eyes of the Europeans were opened through the Crusades.
They believed this because the British harshly collected taxes from the poor peasants and forcefully occupied their land which caused wide disturbance in village economy
<span>The introduction of new power sources</span>