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.
President Roosevelt, wearing a black armband, signs the Declaration of War against Japan on December 8, 1941. On December 8, 1941, the United States Congress declared war upon the Empire of Japan in response to its surprise attack on Pearl Harbor the prior day.