Spectral analysis of Titan's atmosphere indicates that it consists mainly of ________.
A. nitrogen
B. hydrogen and helium
C. oxygen
D. carbon dioxide
Answer: A
You might also like to view...
Applications to Astronomy: Stars A and B are both black holes but have different masses. If the mass of star A is twice as much as the mass of star B, the average density of star A, compared to the average density of star B will be
A. the same. B. twice as much. C. half as much. D. four times as much. E. one-fourth as much.
Based on the given right ascensions and declinations, which of the following stars lies closest to the celestial equator on the celestial sphere?
A) Sirius: RA = 6hr 45m, dec = -16°42' B) Canopus: RA = 6hr 24m, dec = -52°41' C) Alpha Centauri: RA = 14hr 40m, dec = -60°50' D) Arcturus: RA = 14hr 16m, dec = +19°11' E) Vega: RA = 18hr 37m, dec = +38°47'
What are the two most important properties for optical telescopes?
a. high magnification and high angular resolution. b. high magnification and low angular resolution. c. low magnification and large collecting area. d. a large collecting area and high angular resolution. e. a large collecting area and low angular resolution.
The shorter a wave's wavelength, the greater its energy
Indicate whether the statement is true or false