Exton and Shah measured that distance as 0.12 meters, or 0.12 meters per cycle. Multiplying something measured in âmeters per cycleâ by something in âcycles per secondâ will give a measurement in âmeters per second.â That's the wave's velocityâthe speed of light.
The US declared war on Japan (unanimously in the Senate, and 388 to 1 in the House of Representatives) on 8 December 1941 thus entering WWII. The declaration was in response tâ¦o the bombing of Pearl Harbor on 7 December 1941.
There was only one event that led the US to enter WWII. That was the Japanese attack on Pearl Harbor in what was then the Territory of Hawaii. That happened on December 7, 1941. No other event actually caused the US to participate in the war. There were many events that made the US more likely to want to enter the war.