Which was a contribution to astronomy made by Copernicus?
A) The planets move around the Sun in elliptical orbits.
B) His theory of gravity accounted for the variable speeds of the planets.
C) He laid out the order and relative motion of the known solar system.
D) He discovered the Sun was not at the center of the Milky Way.
E) His telescope revealed the four moons of Jupiter, a model solar system.
C
You might also like to view...
A 120-V rms voltage at 1000 Hz is applied to a resistor and an inductor in series. If the impedance of this circuit is 110 ?, what is the maximum value of the current?
A) 1.54 A B) 1.09 A C) 1.84 A D) 1.04 A E) None of the other answers is correct.
A converging lens will cause parallel rays of light to
A. Bend to meet at the focal point of the lens. B. Remain parallel C. Bend as though coming from the focal point of the lens. D. Scatter in random directions.
What is the Doppler effect, and how is it produced? Cite two examples
What will be an ideal response?
A quantity of water has more entropy when it is
A) frozen ice. B) boiling. C) at room temperature.