Explanation:
If a star is moving toward Earth, its light waves seem to be squeezed together. The decreasing distance between Earth and the star shortens the wavelength of the starlight received by Earth. This shifts the star's spectral lines toward the blue end of the spectrum. If the star is moving away from us, its waves are effectively stretched out when they reach Earth, increasing their wavelength. This shifts the star's spectral lines toward the red end of spectrum. Dark lines in stellar spectra are being caused by absorption of wavelengths of energy by the elements in the star's outer levels. patterns of absorption lines that appear at shorter or longer wavelengths than normal indicate that the star is moving. The greater the shift from the normal position of the lines, the faster the star is moving.
Answer:
I'm sorry, I have really bad eyes, what does option 1 and 2 say?
Answer:
Roger Sherman
Explanation:
Roger Sherman was a delegate from Connnectcuit who proposed the idea and became the creater and founder of the Legislative branch.
Well the nations of the world demanded that there be a way to get the goods that they needed quicker and more efficiently so that everybody was happier (or maybe they got greedier???)
During World War II, President Truman was notified of the successful test of the atomic bomb, and had to make a decision because he knew it would be a devastating weapon, but it would also guarantee the end of the war.
Even though it was a conflicting decision, Truman believe that the Japanese were cruel and not civilized, and Americans should act the same way in order to fight the country.
So based on these facts, he made the decision to hit both Hiroshima and Nagasaki, in 1945.
