How did Kepler build upon the foundation established by Copernicus?
a. Kepler used data to derive laws of planetary motion that confirmed Copernicus's heliocentric theory, but that showed the orbits were elliptical.
b. Kepler observed the heavens and proved that planetary motion was circular around the sun.
c. Kepler used magic to prove that the earth moved in a manner based on geometric figures, trying to bring harmony of the human soul into alignment with the universe.
d. Kepler demonstrated that the motion of the planets is steady and unchanging.
e. Kepler discovered the three laws of thermodynamics.
a
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In the Brownsville incident, Roosevelt __________.
a. established his reputation as a friend of labor b. brought the country to the brink of war c. took actions that upset conservative southern whites d. demonstrated the limits of his support for African American rights
The Ayyubid dynasty was overthrown in 1250 by
A) a Mamluk military regiment. B) the Mongols. C) the Crusades. D) a direct descendent of Muhammad. E) Turkic nomads.
Which of the following was true of the sexual abuse and harassment of black women by white men in the late nineteenth century?
A) It demonstrated the power of white men over African Americans. B) It rarely went unpunished and so was quite rare. C) It was routinely denounced by white officials but little was done about it. D) It was more common in urban communities than in rural communities.
In his attempt to control the nobility, Peter the Great _____________.
A. disbanded the Imperial Diet B. outlawed serfdom C. implemented a Table of Ranks D. required his nobility to obtain a university education E. created a new nobility of the sword