its a crossword puzzle, and it saysAcross6. The standard for comparison in an experiment
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Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States in one year is about 9.3 x 10 to the 19 J.
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the U.S. in one year is about 1.1 X 10^20 J
What are the processes that are responsible for the formation of an elliptical galaxy in comparison to a spiral galaxy? Why cannot galaxies evolve from elliptical to spiral and from spiral to elliptical?