After World War I, President Wilson went to Europe to help write the peace treaty that ended the War. Was he within his Constitutional powers when he negotiated a treaty? Where is that addressed? Did the treaty become activated as soon as he signed it? Why or why not? Where is that addressed?

the answer to your question is

the treaty of hopewell

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.