Author Question: Astronomers can use ________ to measure magnetic fields on the Sun. a. helioseismology b. ... (Read 42 times)

londonang · **on:** Jul 27, 2018

Astronomers can use ________ to measure magnetic fields on the Sun.

a. helioseismology
b. perchloroethylene (C2Cl4)
c. neutrino detectors
d. a magnetic carpet
e. the Zeeman effect

Question 2

In pre-Copernican astronomy, it was almost universally believed that

a. the planets traveled in elliptical orbits about Earth.
b. the center of the universe was the Sun with the Milky Way representing other distant planets.
c. the Sun was at the center of the universe.
d. Earth was at the center of the universe.
e. None of the above was believed.