In: Economics
ANS- I'm sure the question asked was about the "ways" that WWII and mobilization affected the U.S economy.
1~ War lessened the "depression" in U.S -
WWII lead to the formation of new industries, which later turned out to be very beneficial for the U.S economy. Major changes in transportation were seen too.
2~ Major Change for women-
Since men during the war were sent to fight for the nation, their usual jobs were taken over by their wives or other people who were unemployed at that time. The people who were obviously still there since they couldn't be send for military service during the war. In America, before WWII, women were not supposed to work, that was around the time 1930. Obviously that started changing. From consumer goods, the producers of U.S started manufacturing weapons. Tanks, Ship, weapons, guns, pistols. It was WWII - all the products were used consumed well. This meant the supply increased. It also lead to the change of status of women. Because even after the war had ended, women still kept working, and that was a very positive change for the whole country.
3~ Employment opportunities -
Since American producers started producing weapons like guns, and pistols, tanks and ships, and they were consumed well, and employment opportunities rose. The supply had increased so they needed more people working for them. A lot of people in search of better employment opportunities even left the agricultural sector to work with the factories producing war products. (this is also a part of how the US was saved from "Great Depression". )