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.
The Task of Winning the War. On December 7, 1941, the U.S. was thrust into World War II when Japan launched a surprise attack on the American naval fleet at Pearl Harbor. The following day, America and Great Britain declared war on Japan. On December 10, Germany and Italy declared war on the U.S. Did You Know?