Author Question: The centers of granules a. are hot material rising to the photosphere from below. b. are cool ... (Read 87 times)

anshika · **on:** Jul 27, 2018

The centers of granules

a. are hot material rising to the photosphere from below.
b. are cool material falling from the photosphere to the regions below.
c. are fainter and hotter than their surroundings.
d. are brighter and cooler than their surroundings.
e. show strong Zeeman effects.

Question 2

Which of the following statements best describes Kepler's 3rd law of planetary motion?

a. The smaller the diameter of a planet, the faster its rotational period is.
b. The orbital period of a planet is directly proportional to the diameter of the planet.
c. The smaller the orbit, the longer its orbital period is.
d. The larger the orbit, the longer its orbital period is.