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.
On July 7, 1937, Japan invaded China to initiate the war in the Pacific. The German invasion of Poland on September 1, 1939, unleashed the European war. Italy entered World War II on the Axis side on June 10, 1940, as the defeat of France became apparent. Germany Pressures other States to Join the Axis In July 1940, just weeks after the defeat of France, Hitler decided that Nazi Germany would attack the Soviet Union the following spring.