Copernicus
A) provided strong observational evidence that the Earth moved about the Sun
B) proved that the orbital shapes of the planets were ellipses and not circles
C) was the first person to suggest the Earth moved around the Sun
D) revived Aristarchus's suggestion of a Sun-centered solar system and described it mathematically
D
You might also like to view...
Yellow dwarfs have ________ spectral lines than red giants.
A. wider B. narrower C. weaker D. stronger
Contrast Jupiter's magnetosphere with that of Earth and of the other jovian planets
What will be an ideal response?
The above reactions are of the ___________________
a. proton-proton fusion chain
b. hydrogen-hydrogen fusion chain
c. CNO cycle
d. All of the other choices are correct.
An unstable particle initially at rest breaks up into two fragments. The mass of one fragment is 1.75 × 10^–28 kg and the mass of the other fragment is 1.25 × 10^–27 kg. The lighter fragment has a speed of speed 0.850c. What is the speed of the heavier fragment?
a. 0.229c b. 0.119c c. 0.127c d. 0.220c