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 Japanese had hoped to break the Americans by attacking Pearl Harbor, instead they united them. The next day, December 8th, 1941, the US declared war on Japan. Three days later Japan's allies, Germany and Italy, declared war on the United States. The United States was now a major part of World War II.apanese airplanes made a surprise attack on the US Navy in Pearl Harbor. They destroyed many ships and killed many soldiers. It was this attack that forced the United States to enter World War II.