The light gathering ability of a telescope is most dependent on the diameter of its primary objective
Indicate whether the statement is true or false
TRUE
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The book "De Revolutionibus Orbium Coelestium"
a. describes how Galileo's observations and Kepler's calculations proved the Copernican theory. b. describes the construction of Galileo's telescope and his observations. c. is a dialog written to convince the general public of the merits of the Copernican theory. d. first described the Copernican theory. e. describes the Tychonian theory.
Briefly explain how we can use spectral lines to determine an object's radial motion. Can we also learn the object's tangential motion (across our line of sight) from its spectral lines?
What will be an ideal response?
How can a black hole of a few solar masses be detected?
What will be an ideal response?
What is the correct electronic configuration for ground state carbon, which has 6 electrons?
A) 1s22s22p2 B) 1s12p1 C) 1s12s22p1 D) 1s12s12p1 E) 1s22s22p4